Podcasts about Geophysical Research Letters

Die Themen in den Wissensnachrichten: +++ Invasive Arten richten weltweit jährlich Milliardenschäden an +++ Ruinen von rätselhaftem Volk in den Anden entdeckt +++ Magma aus der Tiefe treibt Ostafrika auseinander +++**********Weiterführende Quellen zu dieser Folge:Using species ranges and macroeconomic data to fill the gap in costs of biological invasions, Nature Ecology and Evolution, 26.05.2025Discovery of Over 100 Archaeological Structures At Gran Pajatén. World Monuments FundNeon Isotopes in Geothermal Gases From the Kenya Rift Reveal a Common Deep Mantle Source Beneath East Africa, Geophysical Research Letters, 12.05.2025Grünes Band: längste Erfassung der Artenvielfalt Deutschlands gestartet. BfN 27.5.25More than a fingerprint on a pebble: A pigment-marked object from San Lázaro rock-shelter in the context of Neanderthal symbolic behavior, Archaeological and Anthropological Sciences, 24.05.2025Alle Quellen findet ihr hier.**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok und Instagram .

THERESA CRIMMINS BIOTheresa Crimmins is an internationally recognized phenology researcher, director of the USA National Phenology Network, and associate professor in the School of Natural Resources and the Environment at the University of Arizona. In her role with the Network, Theresa supports an amazing team and works enthusiastically to support the growth and use of phenology data and resources curated by the USA-NPN, involvement in Nature's Notebook, and a broader appreciation of phenology among scientists and non-scientists alike.Theresa has published over 70 peer-reviewed articles and book chapters in journals including Nature, Geophysical Research Letters, Global Change Biology, and Journal of Ecology. Her writing has appeared in Scientific American, The Hill, and the Old Farmer's Almanac, and Nautilus Magazine. She shared her thoughts about the importance of observing phenology in a TEDx talk in October 2024 and her book, Phenology, was published through MIT Press in early 2025.THE PLANTASTIC PODCASTThe Plantastic Podcast is a monthly podcast created by Dr. Jared Barnes.  He's been gardening since he was five years old and now is an award-winning professor of horticulture at Stephen F. Austin State University in Nacogdoches, TX.  To say hi and find the show notes, visit theplantasticpodcast.com.You can learn more about how Dr. Jared cultivates plants, minds, and life at meristemhorticulture.com.  He also shares thoughts and cutting-edge plant research each week in his newsletter plant•ed, and you can sign up at meristemhorticulture.com/subscribe.  Until next time, #keepgrowing!home and gardengardeninggardennative plantgarden designersciencenaturenative plantsgarden designgardenernative flowershorticultureplantplantsnaturalistic planting 

Die Themen in den Wissensnachrichten: +++ Mögliche Magmakammern in der Eifel +++ Pizza-Stein-Material verhält sich gegen Hitze-Regeln +++ Eine Giftspinnen-Art sind eigentlich drei +++**********Weiterführende Quellen zu dieser Folge:Seismic Reflection Imaging of Fluid-Filled Sills in the West Eifel Volcanic Field, Germany, Geophysical Research Letters, 22.12.2024Evolution of the iodine cycle and the late stabilization of the Earth's ozone layer, PNAS, 06.01.2025Anomalous thermal expansion of cordierite, Mg2Al4Si5O18, understood through lattice simulations, Matter, 10.01.2025Cannabis Laws and Utilization of Medications for the Treatment of Mental Health Disorders, JAMA Network Open, 05.09.2024The world's most venomous spider is a species complex: systematics of the Sydney funnel-web spider (Atracidae: Atrax robustus), BMC Ecology and Evolution, 13.01.2025**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok auf&ab , TikTok wie_geht und Instagram .

Estudo publicado na Geophysical Research Letters conclui que injectar pó de diamante na estratosfera poderia baixar a temperatura do planeta em 1,6 graus. Os custos de operação destas seriam exorbitantes

Astronomy AstroDailyPod - The Podcast: 23rd September 2024Welcome to another episode of Astronomy AstroDailyPod, your ultimate source for the latest Space and Astronomy news. I'm your host, Steve Dunkley, and today we have a fascinating lineup of stories from the Astronomy AstroDailyPod newsletter. From insights into Jupiter's Great Red Spot and moonquakes, to China's latest satellite launch and discoveries at the edge of the solar system, we've got it all covered. Let's dive in!Highlights:- Jupiter's Great Red Spot: A new study suggests that Jupiter's iconic Great Red Spot, visible for at least 190 years, is not the same one observed by astronomer Giovanni Domenico Cassini in 1665. The current spot likely formed from an instability in Jupiter's atmospheric winds, creating a persistent atmospheric cell. This research, published in Geophysical Research Letters, used historical observations and numerical models to explore the longevity and nature of this massive atmospheric vortex.- China's Satellite Launch: China successfully launched two new satellites as part of its Buddy navigation satellite system. Carried by a Long March 3B rocket from the Xichang Satellite Launch Centre, these satellites are equipped with upgraded atomic clock systems and new inter-satellite data links. The Buddy network, China's largest civilian satellite system, now has over 50 active satellites, providing global positioning and navigation services.- Moonquakes and Lunar Exploration: As NASA prepares for more missions to the lunar surface, new research indicates that potential landing sites at the moon's south pole might be susceptible to quakes and landslides. The study, based on data from Apollo-era seismometers, highlights the need for lunar design criteria to address these seismic hazards. The findings could influence the planning and construction of habitats and infrastructure on the moon.- Kuiper Belt Discoveries: NASA's New Horizons Kuiper Belt search Timms reports the detection of an unexpected population of distant bodies in the Kuiper Belt, stretching almost 90 times as far from the sun as Earth. This discovery suggests that the Kuiper Belt may be larger than previously thought or that there is a second Kuiper Belt beyond the one discovered in the 1990s. The findings could challenge current models of the solar system's formation.- NASA's Lunar Navigation Challenge: NASA is seeking innovative solutions to help Artemis astronauts navigate the lunar south pole. The Lunar Navigation Challenge invites individuals and teams to design a low-tech backup navigational device for astronauts and creative solutions for mapping the bottom of Shackleton Crater. The challenge aims to address the unique orienteering difficulties posed by the lunar south pole's extreme light and shadows.For more Space news, be sure to visit our website at astronomydaily.io. There you can sign up for our free AstroDailyPod newsletter and explore our constantly updating news feed. Don't forget to check out all our previous episodes on the website as well.And if you want even more Astronomy AstroDailyPod content, find us on social media. Just search for #AstroDailyPod on facebook, X, YouTubeMusic, and TikTok.Thanks for listening, and remember to keep looking up.Sponsor Links:NordVPNNordPassMalwarebytesProton MailOld Glory - Iconic Music & Sports Fand MerchBecome a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-podcast--5648921/support.

The Laki Fissure Eruption was a volcanic event in Iceland in 1783 lasted for months, leading to the deaths of thousands of people and affecting the climate in a lot of the world. Research: “Laki Fissure Eruption, 1783.” URI Graduate School of Oceanography. https://volcano.uri.edu/lava/LakiEruption/Lakierupt.html Barone, Jennifer. “World Versus the Volcano.” Discover. Mar 2007, Vol. 28 Issue 3, p20-20. Brahic, Catherine. “Giant eruptions in Iceland led to Nile famine.” New Scientist. 11/23/2006. https://www.newscientist.com/article/dn10649-giant-eruptions-in-iceland-led-to-nile-famine/ Britannica, The Editors of Encyclopaedia. "Laki". Encyclopedia Britannica, 16 Oct. 2023, https://www.britannica.com/place/Laki. Accessed 2 July 2024. Casey, Joan A. et al. “Sun smoke in Sweden: Perinatal implications of the Laki volcanic eruptions, 1783–1784.” Epidemiology. 2019 May ; 30(3): 330–333. doi:10.1097/EDE.0000000000000977. Grattan, John and Mark Brayshay. “An Amazing and Portentous Summer: Environmental and Social Responses in Britain to the 1783 Eruption of an Iceland Volcano.” The Geographical Journal , Jul., 1995, Vol. 161, No. 2 (Jul., 1995). Via JSTOR. https://www.jstor.org/stable/3059970 Grattan, John et al. “Modelling the distal impacts of past volcanic gas emissions. Evidence of Europe-wide environmental impacts from gases emitted during the eruption of Italian and Icelandic volcanoes in 1783.” Quaternaire Année 1998  9-1  25-35. https://www.persee.fr/doc/quate_1142-2904_1998_num_9_1_2103 Gunnarsdóttir, Margrét. “Facing natural extremes: The catastrophe of the Laki eruption in Iceland, 1783–84.” 1700-tal: Nordic Journal for Eighteenth-Century Studies, 19 (2022). 72–93. https://doi.org/10.7557/4.6611 Harvard Map Collection. “Laki, 1783-1784.” A Exhibition in Pusey Library from 14 Dec 2016 to 19 April 2017. https://archive.blogs.harvard.edu/wheredisasterstrikes/volcano/laki-1783-1784/ Jackson, E.L. “The Laki Eruption of 1783: impacts on population and settlement in Iceland.” Geography , January 1982, Vol. 67, No. 1 (January 1982). https://www.jstor.org/stable/40570468 Karlsson, Gunnar; Kristinsson, Valdimar and Matthíasson, Björn. "Iceland". Encyclopedia Britannica, 3 Jul. 2024, https://www.britannica.com/place/Iceland. Accessed 3 July 2024. Kleeman, Katrin. “A Mist Connection: An Environmental History of the Laki Eruption of 1783 and Its Legacy.” Historical Catastrophe Studies. Walter de Gruyter GmbH. 2023. Kleemann, Katrin. “Telling Stories of a Changed Climate.” RCC Perspectives , No. 4, COMMUNICATING THE CLIMATE: From Knowing Change to Changing Knowledge (2019) Via JSTOR. https://www.jstor.org/stable/10.2307/26760163. Kleemann, Katrin. “The Laki Fissure eruption, 1783-1784.” Encyclopedia of the Environment. 1/14/2020. https://www.encyclopedie-environnement.org/en/society/laki-fissure-eruption-1783-1784/ Klemetti, Erik. “Local and Global Impacts of the 1783-84 Laki Eruption in Iceland.” Wired. 6/7/2013. https://www.wired.com/2013/06/local-and-global-impacts-1793-laki-eruption-iceland/ Najork, Daniel. “Jón versus the Volcano: Reading an Eighteenth-Century Icelandic Priest's Account of a Moment of Crisis in the midst of the COVID-19 Pandemic.” Medievalist.com. https://www.medievalist.com/articles/strongjn-versus-the-volcano-an-eighteenth-century-icelandic-priests-account-of-a-moment-of-crisisstrong National Science Foundation. “Tree rings and Iceland's Laki volcano eruption: A closer look at climate.” 2/3/2021. https://new.nsf.gov/news/tree-rings-icelands-laki-volcano-eruption-closer Oman, Luke. “High-latitude eruptions cast shadow over the African monsoon and the flow of the Nile.” Geophysical Research Letters. 9/30/2006. https://doi.org/10.1029/2006GL027665 Penn State. “Benjamin Franklin: Politician, Inventor, Climatologist.” https://www.e-education.psu.edu/rocco/node/1990 The Economist. “The summer of acid rain.” 12/19/2007. https://www.economist.com/christmas-specials/2007/12/19/the-summer-of-acid-rain White, Gilbert. “The Natural History of Selborne.” January 1st, 1788. https://www.gutenberg.org/cache/epub/1408/pg1408-images.html Wieners, Claudia E. “Haze, Hunger, Hesitation: Disaster aid after the 1783 Laki eruption.” Journal of Volcanology and Geothermal Research. Volume 406, 15 November 2020. https://www.sciencedirect.com/science/article/abs/pii/S0377027319305220 Witze, Alexandra. “Island on Fire: Societal Lessons From Iceland's Volcanoes.” Natural Hazards Observer Volume XL - Number 1 Island on Fire. 9/28/2015. https://hazards.colorado.edu/article/island-on-fire-societal-lessons-from-iceland-s-volcanoes See omnystudio.com/listener for privacy information.

L'été 2018 a apporté une chaleur intense à Londres. Ces températures ont servi de base à une étude menée par des chercheurs de l'University College London (Royaume-Uni), visant à tester divers systèmes de gestion de la chaleur dans le Grand Londres à travers un modèle climatique urbain tridimensionnel. Les solutions testées incluaient des panneaux solaires sur les toits, des toitures végétalisées ou couvertes d'un revêtement réfléchissant, de la végétation urbaine et l'utilisation de la climatisation. Les chercheurs ont modélisé ces solutions comme si elles avaient été adoptées à grande échelle dans toute la zone urbaine, rapportent-ils dans les Geophysical Research Letters.Les résultats montrent que recouvrir les toits d'un revêtement réfléchissant est la méthode la plus efficace pour réduire la température à Londres, avec une baisse d'environ 1,2 °C, et jusqu'à 2 °C dans certaines zones. En revanche, végétaliser les rues, bien que bénéfique à d'autres égards, n'a réduit les températures que de 0,3 °C en moyenne. Pire encore, la climatisation des bâtiments a contribué à augmenter la température extérieure en ville de 0,15 °C.Les chercheurs ont également observé des effets contrastés pour les toits végétalisés. Pendant la journée, ils réduisent la température de 0,5 °C en moyenne, mais une fois la nuit tombée, ils retiennent la chaleur, augmentant légèrement les températures nocturnes. Les arbres urbains, quant à eux, améliorent le confort nocturne en réduisant la chaleur, mais augmentent l'humidité de l'air, ce qui peut être inconfortable. Avec ces précieuses informations en main, nous pourrions trouver des moyens plus efficaces d'adapter nos villes au réchauffement climatique. En attendant, il est crucial de continuer à chercher des solutions pour freiner cette tendance alarmante. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

En 1987, le protocole de Montréal est venu règlementer l'usage des substances nocives pour la couche d'ozone, les fameux chlorofluorocarbures (CFC), ce qui a effectivement permis de colmater une partie du trou observé au-dessus de l'Antarctique. Mais une autre substance pourrait venir anéantir tous nos efforts en la matière, alertent aujourd'hui des chercheurs de l'université de Californie du Sud aux États-Unis.Ces substances, ce sont les oxydes d'aluminium, qui n'avaient pas tant attiré l'attention à l'époque. Pourtant, les scientifiques savent qu'ils déclenchent des réactions chimiques qui détruisent l'ozone. D'autant plus que les oxydes d'aluminium ne sont pas consommés dans l'opération. Ils peuvent donc poursuivre leur travail de destruction pendant des décennies. Toutefois, comme ils sont notamment émis par des satellites en fin de vie qui retombent et brûlent dans l'atmosphère de la Terre, le problème ne semblait pas de la plus grande importance. Mais ça, c'était en 1987. Depuis, les satellites en orbite se sont multipliés, et les chercheurs estiment aujourd'hui, dans les Geophysical Research Letters, que les taux d'oxydes d'aluminium ont déjà été multipliés par huit entre 2016 et 2022. Leurs modélisations montrent qu'un satellite de 250 kilos, composé à 30 % d'aluminium, générera environ 30 kilos de nanoparticules d'oxydes d'aluminium lorsqu'il rentrera dans notre atmosphère. Des particules qui pourront mettre 30 ans pour atteindre la stratosphère où se trouve 90 % de l'ozone.Or, des lancements de satellites sont programmés par milliers pour les années à venir. Des « mégaconstellations » qu'il faudra sans cesse renouveler pour maintenir les services fournis au-delà de leur durée de vie d'environ cinq ans. Résultat, les chercheurs avancent qu'au moment où les constellations de satellites actuellement prévues seront terminées, pas moins de 910 tonnes d'aluminium tomberont sur Terre chaque année ! De quoi libérer 360 tonnes d'oxydes d'aluminium par an, ce qui correspond à une augmentation de 646 % par rapport aux niveaux naturels ! Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

La Grande Tache Rouge de Jupiter est le vortex connu le plus grand et le plus ancien de toutes les planètes du système solaire, mais sa durée de vie est débattue et son mécanisme de formation reste mal compris. On dit souvent que c'est Jean Dominique Cassini qui l'a découverte en 1665, mais aujourd'hui, des astronomes démontrent que ce qu'a observé Cassini à l'époque n'est pas la Grande Tache Rouge d'aujourd'hui, mais un autre anticyclone. Ils publient leur étude dans Geophysical Resarch Letters. Source The Origin of Jupiter's Great Red SpotAgustín Sánchez-Lavega et al.Geophysical Research Letters (16 June 2024)https://doi.org/10.1029/2024GL108993

Embark on a celestial journey with today's episode of Astronomy Daily - The Podcast, where your host, Anna, brings you the latest cosmic updates. We'll explore the first major lunar standstill in 18 years, unveiling a breathtaking celestial moment you won't want to miss. Next, we'll dive into the rich, metallic landscapes of Mars, painting a vivid picture of the red planet's geological marvels. We'll also tackle the unsettling reality of space junk and its impact on Earth's ozone layer, a concern growing with the expansion of satellite mega constellations. Shifting our gaze to Saturn's moon Titan, we'll uncover how wave activity might be shaping its mysterious coastlines. Finally, we'll explore how cosmic winds driven by supermassive black holes can alter the very fabric of galaxies. And to round it all off, we'll get an update on the latest developments at SpaceX's Starbase. So let's dive right in.This year marks a truly remarkable celestial event, the first major lunar standstill since 2006. This fascinating phenomenon will see the moon rising and setting at its most extreme points on the horizon. For sky watchers, this is a rare treat, occurring only once every 18.6 years. During a major lunar standstill, the tilts of both the Earth and the moon are at their maximum, causing the moon to rise and set at its highest and lowest points in its orbital cycle. To fully appreciate the grandeur of this event, consider the ancient sites of Stonehenge, Kalanish, and Newgrange. These prehistoric monuments are thought to be aligned with the points of moonrise and moonset during such standstills, indicating the historical significance and awe that this event has invoked in humanity for millennia. The next standstill, at its most extreme, will be around the equinoxes in September 2024 and March 2025. For those eager to witness this spectacle, the best times include moonrise at sunset and moonset at sunrise, especially during a full moon. No need for elaborate equipment, just a clear view of the horizon will suffice to observe the moon's dramatic paths. So mark your calendars and be sure to look up. The lunar sky is about to put on a show you won't want to miss.The European Space Agency has recently unveiled a breathtaking image of Mars' Marth Vallis region, highlighting the planet's complex and metallic beauty. This newly captured scene showcases landscapes rich in iron, magnesium, and aluminum, creating a vibrant and rust-colored spectacle that tells a story billions of years in the making. Marth Vallis is particularly significant because it bears evidence of ancient water flow. The region's deeply eroded valleys and mineral-rich layers suggest that liquid water once roamed these Martian plains, potentially creating habitable conditions. This discovery continues to intrigue scientists as understanding the history of water on Mars is crucial for piecing together the planet's potential for supporting life. With ongoing studies and future missions focused on similar areas, we inch closer to unlocking the mysteries of the red planet's wet past and its capacity to host life.A new study has quantified the alarming extent of pollution caused by defunct Internet satellites. Thousands of satellites have been deployed into mega constellations to meet the growing global demand for Internet services. However, when these satellites reach the end of their operational life and re-enter Earth's atmosphere, they disintegrate and release aluminum oxide particles that erode the ozone layer. This phenomenon poses a significant threat to the years of progress made in ozone recovery. The 1987 Montreal Protocol successfully curbed the emission of ozone-depleting substances like CFCs, leading to a shrinking ozone hole over Antarctica, with full recovery expected within the next few decades. But now the unexpected increase in aluminum oxide pollution could derail this positive trend. The study, published in Geophysical Research Letters, shows that aluminum oxide particles initiate chemical reactions between ozone and chlorine, leading to sustained ozone depletion. Alarmingly, the number of aluminum oxide particles in the atmosphere has surged eightfold from 2016 to 2022. This spike is set to continue as companies like SpaceX and Amazon plan to launch thousands more satellites. The ongoing and upcoming mega constellations are estimated to significantly elevate aluminum levels in the mesosphere, thereby posing a long-term threat to the stratospheric ozone layer, which shields us from harmful UV radiation. The researchers emphasize the need for immediate attention to this growing issue, advocating for sustainable practices to limit satellite-driven ozone depletion. The results underline the importance of balancing technological advancement with environmental stewardship to ensure our atmosphere remains protective for generations to come.Titan, Saturn's largest moon, features active lakes and seas filled with liquid methane and ethane. These otherworldly bodies of liquid are not only visually compelling but also tell a story of relentless geological activity. Recent simulations by MIT researchers have shed light on how waves might be eroding Titan's coastlines, radically altering our understanding of this mysterious moon. By modeling terrestrial erosion processes and applying them to Titan's unique environment, the researchers determined that wave activity is likely responsible for shaping the moon's shores. This means that shorelines on Titan resemble those formed by waves here on Earth, suggesting a dynamic interplay between the liquid bodies and the wind-driven waves. These discoveries offer invaluable insights into Titan's climate, helping scientists better understand its geological history and atmospheric conditions. If winds are strong enough to drive these waves, they could reveal secrets about Titan's weather patterns and even its potential to support some form of prebiotic chemistry.A groundbreaking study reveals that supermassive black holes are generating powerful cosmic winds, capable of accelerating gas to astonishing speeds of over 10,000 miles/second. These black hole-induced winds don't just ripple through their galaxies, they fundamentally reshape them by either fueling or stifling star formation. These powerful winds can have a dramatic effect on the galaxy's evolution. Imagine a quasar, a supermassive black hole surrounded by a disk of matter being pulled in by the black hole's gravitational force. The friction created as this matter spirals inward heats the disk, emitting intense radiation that can propel gas at unimaginable speeds. This process isn't merely a cosmic spectacle; it serves a critical function in the galactic environment. Depending on the circumstances, these winds can compress gas, leading to the birth of new stars or expel the gas, preventing star formation altogether. Researchers now have a clearer understanding of how these fascinating mechanisms work, thanks to long-term observational data that captured these accelerating gases in action. This transformational insight adds another piece to the puzzle of how black holes interact with and shape their host galaxies, emphasizing the profound impact these cosmic phenomena have on the universe.SpaceX is busy at Starbase preparing for its fifth flight by upgrading its infrastructure, including new office buildings and the construction of a second tower. Recently, Ship 26 conducted its first multi-engine static fire test at the site, marking a significant milestone. These enhancements, which also involve a new test stand, improved tank farms, and the development of Megabay Two, are designed to expedite vehicle testing and future launches. With a new parking garage and updated launch mount systems in place, SpaceX aims to ensure quicker turnarounds and increased safety for its employees and operations. These ongoing upgrades showcase SpaceX's unwavering commitment to pushing the boundaries of space exploration and innovation.For an astronomical experience, visit our website at astronomydaily.io for the latest news, sign up for our free newsletter, and check out exclusive sponsor deals. Connect with us on YouTube, TikTok, X, and Facebook via @AstroDailyPod for engaging discussions with fellow space aficionados. This is Anna, reminding you to keep your gaze fixed on the heavens. Until our next stellar episode, let the cosmos ignite your curiosity and wonder. Clear skies and cosmic discoveries to all!Support:This podcast is better with your support:https://www.bitesz.com/show/astronomy-daily-the-podcast/support/www.bitesz.comSponsors:www.bitesz.com/nordpasshttps://www.bitesz.com/show/astronomy-daily-the-podcast/sponsors/

Remember chlorofluorocarbons (CFCs)? These gases were once widely used as refrigerants in products like refrigerators and air conditioners, and to propel substances like hairspray out of aerosol cans. Recently, CFCs have resurfaced in the news due to a new study examining space debris. CFCs are notorious for damaging the ozone layer, a crucial shield that protects Earth from harmful ultraviolet radiation. Thanks to the 1987 Montreal Protocol, which regulates the use of these gases, the ozone hole above Antarctica is expected to heal within 50 years. However, new research published in the journal Geophysical Research Letters introduces a fresh challenge. This study reveals that old satellites, when re-entering Earth's atmosphere and disintegrating, release aluminium oxide nanoparticles. These nanoparticles react with residual atmospheric chlorine from CFCs, further depleting the ozone layer. Alarmingly, aluminum oxides, which are not consumed in this reaction, continue to destroy ozone molecules for decades as they descend through the stratosphere. Currently, there are about 8,100 objects in low Earth orbit, 6,000 of which are Starlink satellites providing global internet access. Starlink plans to launch an additional 42,000 satellites, 12,000 of which have already been approved, and other companies, including Amazon, are also planning to deploy thousands of their own satellites. These low Earth orbit internet satellites have a lifespan of approximately five years, after which they are left as space junk, eventually burning up in our atmosphere. The study found that between 2016 and 2022, the presence of these nanoparticles increased eightfold—a trend that will continue as more satellites are launched. Researchers calculated that one satellite will produce about 30 kilograms of aluminium oxide nanoparticles during its atmospheric re-entry, and these particles can take up to 30 years to reach stratospheric altitudes, where 90% of Earth's ozone resides. They estimated that once all planned satellite constellations are operational, around 912 metric tons of aluminium will be released annually, resulting in approximately 360 metric tons of aluminium oxides entering the atmosphere each year. This represents a 646% increase over natural levels, posing a significant threat to the future of our ozone layer, which is essential for protecting life on Earth from harmful ultraviolet radiation. LISTEN ABOVESee omnystudio.com/listener for privacy information.

Water is the most precious substance on earth and a primary building block of life. Humans can't live more than a few days without it. Yet in order to grow, cultivate, process, and transport our food, we waste a tremendous amount of it. So much so that we need to pull more of it out of the ground just to satisfy our agricultural needs, making matters worse. A report in the June 2023 issue of Geophysical Research Letters indicates that depletion of groundwater was a significant contributor to sea level and climate change. The majority of the southwestern United States, northern Australia, most of the South American continent, all of Northern Africa and the Middle East and parts of western Asia are in perennial drought. We need water to live, yet we also need water to make the food we rely on to live; and we never seem to have enough of it. Why the tradeoff? Why so much waste? Is there a way to reduce our consumption of water with integrated circuits and AI?  How could Microchip Technology help conserve our most precious resource?   Links from the episode:     Guests:  Ross Satchell  Toby Sinkinson   

D'ici 25 ans, les Alpes risquent de perdre 34% de leur volume de glace… Et ça, c'est dans le meilleur des cas, même si le réchauffement climatique s'arrêtait brusquement demain. C'est en tout cas ce qui ressort de l'étude réalisée par des chercheurs des universités de Grenoble, Zurich et Lausanne en Suisse, qui ont utilisé des modèles informatiques intégrant l'apprentissage automatique (machine learning), pour mettre en lumière une fonte qui semble inéluctable.La collaboration entre les trois universités a donné naissance à un modèle prédictif tristement novateur, qui utilise l'intelligence artificielle, les algorithmes d'apprentissage automatique, et des données climatiques remontant jusqu'en 2022. En somme, l'outil a relevé que les glaces continuaient de fondre sans qu'on puisse inverser la tendance. D'après l'étude, même en cas d'arrêt immédiat des émissions de gaz à effet de serre, les Alpes pourraient perdre 34% de leur volume de glace d'ici 2050. L'étude publiée dans la revue scientifique Geophysical Research Letters, dont le lien est dans la description de l'épisode, adopte plutôt une perspective à court terme. Les chercheurs suggèrent que des changements drastiques sont nécessaires pour éviter une disparition catastrophique de la glace, et par conséquent, de l'écosystème entier des Alpes, d'autant plus qu'il existe un scénario plus pessimiste, et surtout, plus réaliste.L'étude a également demandé aux modèles de simuler la perte de volume en se basant sur les données météo et environnementales récoltées entre 2010-2022. Dans ce cas précis, la fonte des glaces grimpe à 65%, toujours d'ici 2050. Ainsi, la Mer de Glace française dans le massif du Mont-Blanc, pourrait voir son volume fondre de moitié d'ici 2050. Les chercheurs ont aussi utilisé l'intelligence artificielle pour affiner les modèles de prévision et intégrer des concepts physiques complexes qui en améliorent la précision et l'efficacité. Cette approche plutôt innovante est censée permettre de mieux anticiper les évolutions futures du climat et de la fonte glaciaire. En somme, l'étude nous confronte à une réalité implacable : même si le réchauffement climatique s'arrêtait aujourd'hui, les glaciers alpins sont déjà engagés dans une trajectoire irréversible de fonte majeure, avec des conséquences catastrophiques pour nos réserves en eau. Étude : https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL105029 Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

Speedy ocean predators change their skin colour to signal they're going in for the kill (1:02)Marlin are predatory fish that can reach tremendous speeds in pursuit of food, making collisions between them potentially deadly. A new study has shown that the fish display bright and vivid skin colours to signal to other marlin when they're attacking prey, so as to avoid butting heads. Alicia Burns and her team from the Science of Intelligence Cluster, Humboldt University used drones to capture video footage of the marlins' hunting behaviour.The tiny genetic fluke that led humans — and other great apes — to lose our tails (9:15)Back when in our evolutionary history, a fragment of genetic material accidentally found itself in in a gene long been known to be important for the development of our entire back end. The result of this mutation, according to a study in the journal Nature, was that we and our great ape ancestors lost our tails. Itai Yanai, a cancer biologist from New York University Grossman Medical School, identified the mutation and found when they duplicated it in mice, they also lost their tails. A cannibal star shows signs of its last meal (18:06)Astronomers have identified a nearby white dwarf star with what they are calling a ‘scar' of material visible on its surface. This was probably an asteroid flung towards the star, ripped apart by its gravity, and its rubble drawn onto the star's surface by its powerful magnetic field. This is the first time such a phenomenon has been seen. This study was conducted by a team including astronomer John Landstreet, a professor emeritus from the Physics and Astronomy Department at Western University.Stone age craftsmen acted like engineers when selecting materials for their tools (26:32)A new study of what it takes to make efficient and effective stone tools, like the ones ancient humans were producing back in the Middle Stone Age, shows how discriminating they were in the materials they selected. Patrick Schmidt, an archaeologist from University of Tübingen, published a study in the journal PNAS about a model he developed to assess how well suited the raw materials were for the type of tools they were creating. Schmidt said their findings suggest that stone age craftsmen had an engineer's understanding of the mechanical properties of the materials they used.Boreal forest on the move — the past, present, and potential future of the ‘lungs of the planet' (35:39)The boreal forest has an important role in maintaining a healthy planet, by storing carbon, purifying the air and water, and helping to regulate the climate. Researchers are using novel ways to understand how the boreal forest has changed over time, to help predict how it can change in the future.Paleoecologist Sandra Brügger traced a detailed history of the forests in Eastern Canada over the past 850 years by studying trapped pollen found thousands of kilometers away in the Greenland ice sheet. The ice cores allowed the team to look at the shrinking and expansion of the forest since the Little Ice Age, and spot the effects of humans as they took over the landscape. The research was published in the journal Geophysical Research Letters.Then, by doing detailed analysis of trees along the Brooks mountain range in Alaska, a team of researchers including Colin Maher discovered a link between retreating sea ice and an expanding Boreal forest. When the sea ice disappears, the open water generates more snow, which not only blankets the landscape and protects the young seedlings, but it also helps the soil unlock more nutrients for the growing trees. The research was published in the journal Science.

Recorded 16 November 2023. On Earth, we understand how and where earthquakes happen due to the discovery of plate tectonics – the continental crust's creation, movement, and destruction. However, when astronauts placed seismometers on the lunar surface during NASA's Apollo mission era, those instruments recorded quakes on the Moon.    In the 1970s, the Viking landers also recorded quakes on the surface of Mars. Since neither of these worlds has plate tectonics, scientists set about collecting more data to understand the phenomena, which led to the recent NASA InSight lander.    Now, a new paper in Geophysical Research Letters explains how the largest recorded seismic event on Mars provided evidence for a different sort of tectonic origin — the release of stress within the Martian crust.   Join communications specialist Beth Johnson as she talks to lead author Dr. Benjamin Fernando about the results of an amazing international collaboration that led to this new discovery.    We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations.  Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at info@365DaysOfAstronomy.org.

Die Themen in den Wissensnachrichten: +++ Grönland erhebt sich aus dem Meer +++ Frosch-Fossil: Tod bei der Paarung +++ Höheres Herz-Kreislauf-Risiko durch HPV +++**********Weiterführende Quellen zu dieser Folge:Vertical Land Motion Due To Present-Day Ice Loss From Greenland's and Canada's Peripheral Glaciers, Geophysical Research Letters, 13.1. 2024A cretaceous frog with eggs from northwestern China provides fossil evidence for sexual maturity preceding skeletal maturity in anurans, Proceedings of the Royal Society B ,7.2. 2024Human papillomavirus infection and cardiovascular mortality: a cohort study, European Heart Journal, 7.2. 2024Antler Allometry, the Irish Elk and Gould Revisited, Evolutionary Biology, 29.1. 2024Implicit racial biases are lower in more populous more diverse and less segregated US cities, Nature Communications, 6.2.2024Alle Quellen findet ihr hier.**********Ihr könnt uns auch auf diesen Kanälen folgen: Tiktok und Instagram.

La naissance d'une île est un phénomène assez surprenant qui généralement est le résultat d'une intense activité volcanique. On a pu observer cela en 2022 dans l'archipel des îles Tonga. Mais au Groenland, l'explication se trouve ailleurs.Dans une nouvelle étude de l'Institut de recherche spatiale de l'Université technique du Danemark, on apprend que le socle rocheux de ce pays s'est élevé de 20 cm au cours de la dernière décennie donc, entre 2013 et 2023, soit une augmentation de 2 mètres par siècle d'après leurs calculs. L'étude, publiée dans la revue Geophysical Research Letters, dont le lien est dans la description de cet épisode, est basée sur une analyse des données du réseau GNET, qui comprend une soixantaine de stations de mesure GPS le long de la côte du Groenland. Et cette élévation du sol du Groenland ne devrait surprendre personne.D'après l'étude, après la fin de la dernière période glaciaire, il y a environ 12 000 ans, les épaisses couches de glace qui recouvraient auparavant les continents ont commencé à relâcher la pression sur les masses continentales, ce qui a entraîné un lent rebond des roches. Mais grâce à cette nouvelle étude, on peut désormais calculer la part du soulèvement de la terre au Groenland, en prenant pour facteur principal le changement climatique et lié aux activités humaines.D'après Shufaqat Abbas Khan, professeur au DTU Space et coauteur de l'étude que je cite, "le soulèvement des terres observé au Groenland ces dernières années ne peut pas s'expliquer uniquement par l'évolution naturelle post-glaciaire. Le Groenland se soulève beaucoup plus ! Ce sont des bouleversements de terrain très importants que nous pouvons actuellement détecter. Ceux-ci affecteront la carte du Groenland, à mesure que de nouvelles terres émergeront de la mer et que de nouvelles petites îles seront créées au fil du temps" fin de citation. En 2022, une autre découverte avait incité les géographes à redessiner la carte du Groenland, tout en fournissant une explication à la mystérieuse disparition de "l'île la plus au nord" du monde.Étude : https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL104851 Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

La naissance d'une île est un phénomène assez surprenant qui généralement est le résultat d'une intense activité volcanique. On a pu observer cela en 2022 dans l'archipel des îles Tonga. Mais au Groenland, l'explication se trouve ailleurs. Dans une nouvelle étude de l'Institut de recherche spatiale de l'Université technique du Danemark, on apprend que le socle rocheux de ce pays s'est élevé de 20 cm au cours de la dernière décennie donc, entre 2013 et 2023, soit une augmentation de 2 mètres par siècle d'après leurs calculs. L'étude, publiée dans la revue Geophysical Research Letters, dont le lien est dans la description de cet épisode, est basée sur une analyse des données du réseau GNET, qui comprend une soixantaine de stations de mesure GPS le long de la côte du Groenland. Et cette élévation du sol du Groenland ne devrait surprendre personne. D'après l'étude, après la fin de la dernière période glaciaire, il y a environ 12 000 ans, les épaisses couches de glace qui recouvraient auparavant les continents ont commencé à relâcher la pression sur les masses continentales, ce qui a entraîné un lent rebond des roches. Mais grâce à cette nouvelle étude, on peut désormais calculer la part du soulèvement de la terre au Groenland, en prenant pour facteur principal le changement climatique et lié aux activités humaines. D'après Shufaqat Abbas Khan, professeur au DTU Space et coauteur de l'étude que je cite, "le soulèvement des terres observé au Groenland ces dernières années ne peut pas s'expliquer uniquement par l'évolution naturelle post-glaciaire. Le Groenland se soulève beaucoup plus ! Ce sont des bouleversements de terrain très importants que nous pouvons actuellement détecter. Ceux-ci affecteront la carte du Groenland, à mesure que de nouvelles terres émergeront de la mer et que de nouvelles petites îles seront créées au fil du temps" fin de citation. En 2022, une autre découverte avait incité les géographes à redessiner la carte du Groenland, tout en fournissant une explication à la mystérieuse disparition de "l'île la plus au nord" du monde. Étude : https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL104851 Learn more about your ad choices. Visit megaphone.fm/adchoices

Nuevos datos del radar MARSIS de la sonda Mars Express de la ESA indican la posible presencia de depósitos de hielo más profundos de lo que se pensaba –de hasta 3,7 kilómetros de espesor– en el ecuador de Marte. Son capas ricas en hielo y otras de polvo. Los resultados se publican en la revista Geophysical Research Letters. ¿Qué indica esto? ¿Qué implicaciones reales y científicas puede tener en la búsqueda de indicios de vida? Ágora conversa con César Menor, profesor en la Universidad de Alcalá de Henares e investigador asociado de la NASA (Instituto Tecnológico de Georgia). Además, en ‘La Química y la Vida', Alberto Jiménez Schuhmacher (ARAID) explica diversas investigaciones frente al Cáncer muy especiales, entre ellas una dedicada a los tumores de mama masculinos. Por último, la primatóloga Laura Camón viene con sus ‘Animales (y) Racionales' a explicar por qué nos atrae el alcohol (como especie eh).

Les deux énigmes les plus intrigantes concernant les lacs et les mers de Titan sont d'une part le calme extrême de ces lacs, avec des hauteurs de vagues inférieures à quelques millimètres seulement, et d'autre part ce que les planétologues ont nommé les "îles magiques", des caractéristiques transitoires qui ont été observées par le radar de la sonde Cassini, comme des caractéristiques brillantes sur les deux plus grandes mers de Titan, Ligeia Mare et Kraken Mare. Une étude théorique venant d'être publiée dans Geophysical Research Letters s'intéresse aux îles magiques et montre qu'il doit s'agir de matière organique sous diverses formes flottant à la surface de l'éthane liquide.https://www.ca-se-passe-la-haut.fr/2024/01/les-iles-magiques-des-lacs-de-titan-de.html Source The Fate of Simple Organics on Titan's Surface: A Theoretical PerspectiveXinting Yu, et al.Geophysical Research Letters (04 January 2024)https://doi.org/10.1029/2023GL106156

On Earth, we understand how and where earthquakes happen due to the discovery of plate tectonics – the continental crust's creation, movement, and destruction. However, when astronauts placed seismometers on the lunar surface during NASA's Apollo mission era, those instruments recorded quakes on the Moon. In the 1970s, the Viking landers also recorded quakes on the surface of Mars. Since neither of these worlds has plate tectonics, scientists set about collecting more data to understand the phenomena, which led to the recent NASA InSight lander. Now, a new paper in Geophysical Research Letters explains how the largest recorded seismic event on Mars provided evidence for a different sort of tectonic origin — the release of stress within the Martian crust. Join communications specialist Beth Johnson as she talks to lead author Benjamin Fernando about the results of an amazing international collaboration that led to this new discovery. (Recorded 16 November 2023.)

Greg and Joe are back this week and are joined by both their colleague Ben Bor and special guest Dr. Noah Diffenbaugh.Dr. Noah Diffenbaugh is the Kara J Foundation Professor and Kimmelman Family Senior Fellow in Stanford's Doerr School of Sustainability, and the Olivier Nomellini Family University Fellow in Undergraduate Education. He studies the climate system, including the processes by which climate change could impact agriculture, water resources, and human health. Dr. Diffenbaugh has served the scholarly community in a number of roles, including as the inaugural Editor-in-Chief of the peer-review journal Environmental Research: Climate, and as Editor-in-Chief of Geophysical Research Letters from 2014-2018. He has also served as a Lead Author for the Intergovernmental Panel on Climate Change (IPCC), and has provided testimony and scientific expertise to Federal, State and local officials. Dr. Diffenbaugh is an elected Fellow of the American Geophysical Union (AGU), a recipient of the James R. Holton Award and William Kaula Award from the AGU, and has been recognized as a Kavli Fellow by the U.S. National Academy of Sciences.We also discuss a bit about Noah's wicked corner three-point shot and wish everyone happy holidays and a happy new year!Be sure to find us on Spotify and Apple by searching "Ecofin Podcasts" and subscribe!Articles, suggestions, and sites referenced are below:https://earth.stanford.edu/people/noah-diffenbaughhttps://news.stanford.edu/2019/04/22/climate-change-worsened-global-economic-inequality/https://thehill.com/opinion/energy-environment/389550-paris-agreement-goals-could-save-trillions-in-avoided-climate/https://blogs.scientificamerican.com/observations/the-climate-benefits-of-the-green-new-deal/https://news.stanford.edu/2021/01/11/climate-change-caused-one-third-historical-flood-damages/https://news.stanford.edu/2021/08/04/climate-change-crop-insurance/https://www.nber.org/papers/w31658 Be sure to find us on Spotify and Apple by searching "Ecofin Podcasts" and subscribe!

In passato, il numero di laghi presenti sulla Terra era valutato, in base a calcoli statistici, in 304 milioni, ma, secondo una ricerca pubblicata in settembre 2014 sulla rivista Geophysical Research Letters, i laghi nel mondo sarebbero 117 milioni; tale numero è stato determinato analizzando con l'ausilio di computer le immagini satellitari *mic drop*| Libro:Me -> Mortina e la vacanza al Lago Mistero - Barbara Cantini |Pi -> Quel ramo del lago di Como. La storia dei Promessi Sposi - Ermanno Detti || Canzone:Me -> Lake Shore Drive - Aliotta Haynes Jeremiah -> Spotify |Pi -> Il lago che combatte - Muro del Canto & Assalti Frontali -> Spotify || Film:Me -> L'incantesimo del lago - diretto da Richard Rich |Pi -> The Haunting Bly Manor - creata e diretta da Mike Flanagana |Siamo su• Facebook• Instagram • Telegram• Playlist Spotify: Parole d'Autore - Canzoni random del Parlandom PodcastPuoi recensirci da telefono su Spotify, oppure su Podcast Apple| Fonti: lago sulla treccani, wikipedia lago sottomarino , Criptide, Lariosaurus, lago a Roma | | Sigla: Whiskey Blues - Ilya Truhanov

The Space News Podcast. SpaceTime Series 26 Episode 130 *The most distant fast radio burst ever Astronomers have identified the most distant Fast Radio Burst ever detected. The ephemeral cosmic blast which has been catalogued as FRB 20220610A occurred some eight billion light years away. *The Moon is 40 million years older than previously thought A new study of lunar rocks brought back by the Apollo 17 astronauts shows that the Moon is some 40 million years older than previously thought. The findings reported in the journal Geochemical Perspectives Letters suggest the Moon accreted from ejecta debris some 4.46 billion years ago – 40 million years earlier than the 4.425 billion years previously thought. *Curiosity rover finds new evidence of ancient Mars rivers, a key signal for life New analysis of data from NASA's Mars Curiosity rover suggests that many of the craters on Mars today could once have hosted habitable rivers. The findings reported in the journal Geophysical Research Letters are based on numerical models which simulate erosion on Mars over millennia. *The Science Report The world is heading toward six global warming tipping points past which the planet's systems will no longer be able to cope. A new study looking at why people like fatty foods so much suggests it might be the texture. Discovery of a new species of coral reef fish in the southern waters of the Great Barrier Reef. Skeptics guide to the spirit of vaccination. And our regular guests: Alex Zaharov-Reutt from www.techadvice.life Tim Mendham from Australian Skeptics Listen to SpaceTime on your favorite podcast app with our universal listen link: https://spacetimewithstuartgary.com/listen and access show links via https://linktr.ee/biteszHQ Additionally, listeners can support the podcast and gain access to bonus content by becoming a SpaceTime crew member through www.bitesz.supercast.com or through premium versions on Spotify and Apple Podcasts. Details on our website at https://spacetimewithstuartgary.com For more SpaceTime and show links: https://linktr.ee/biteszHQ If you love this podcast, please get someone else to listen to. Thank you… To become a SpaceTime supporter and unlock commercial free editions of the show, gain early access and bonus content, please visit https://bitesz.supercast.com/ . Premium version now available via Spotify and Apple Podcasts. For more podcasts visit our HQ at https://bitesz.com This show is part of the Spreaker Prime Network, if you are interested in advertising on this podcast, contact us at https://www.spreaker.com/show/2458531/advertisement

What caused those large quakes on Mars? How can Mars have big Mars-quakes without plate tectonics? If an impact crater isn't too blame for the Mars quakes what may be the cause. An international collaboration pooled the instruments of many countries Mars Missions to solve a mystery. Even using many different countries space ships, no 'smoking crater' was found that caused a mysterious martian quake. How can we study the ancient martian rivers and oceans using data from old martian missions? Jaroslav Klokočník, Gunther Kletetschka, Jan Kostelecký, Aleš Bezděk. Gravity aspects for Mars. Icarus, 2023; 406: 115729 DOI: 10.1016/j.icarus.2023.115729 Benjamin Fernando, Ingrid J. Daubar, Constantinos Charalambous, Peter M. Grindrod, Alexander Stott, Abdullah Al Ateqi, Dimitra Atri, Savas Ceylan, John Clinton, Matthew Fillingim, Ernest Hauber, Jonathon R. Hill, Taichi Kawamura, Jianjun Liu, Antoine Lucas, Ralph Lorenz, Lujendra Ojha, Clement Perrin, Sylvain Piqueux, Simon Stähler, Daniela Tirsch, Colin Wilson, Natalia Wójcicka, Domenico Giardini, Philippe Lognonné, W. Bruce Banerdt. A Tectonic Origin for the Largest Marsquake Observed by InSight. Geophysical Research Letters, 2023; 50 (20) DOI: 10.1029/2023GL103619

Die Themen in den Wissensnachrichten: +++ Roboter verleiten zu "Sozialem Faulenzen" +++ Unfälle mit Fahrrädern verletzten vor allem zu Fuß Gehende +++ Australische Vogelmüttern singen ihren Eiern was vor +++**********Weiterführende Quellen zu dieser Folge:Lean back or lean in? exploring social loafing in human–robot teams, Frontiers in Robotics and AI, 18.10.2023High-resolution maps show that rubber causes substantial deforestation, Nature, 18.10.2023Stress auf dem Gehweg: Studie zeigt Probleme zwischen Radfahrern und Fußgängern, GDV Unfallforschung der Versicherer, 19.10.2023Nestling begging calls resemble maternal vocal signatures when mothers call slowly to embryos, The American NaturalistA Tectonic Origin for the Largest Marsquake Observed by InSight, Geophysical Research Letters, 17.10.2023Hydrology drives export and composition of carbon in a pristine tropical river, Limnology and Oceanography, 13.10.2023**********Ihr könnt uns auch auf diesen Kanälen folgen: Tiktok und Instagram.

An mRNA Advance Wins A Nobel PrizeThis week, a handful of scientists scattered around the world got surprise telephone calls announcing that they will be receiving Nobel Prizes. On Monday, the prize in medicine or physiology was announced. It went to Katalin Kariko and Drew Weissman, scientists who developed the modifications to mRNA that made the biomolecule a viable strategy for creating vaccines. On Tuesday, the Nobel in physics went to Pierre Agostini, Ferenc Krausz and Anne L'Huillier, who created techniques to illuminate the movement of electrons using attosecond-length pulses of light. And on Wednesday  Moungi G. Bawendi, Louis E. Brus and Alexei I. Ekimov learned that they had won the prize in chemistry for their work with tiny bits of semiconductor material known as quantum dots.Umair Irfan, staff writer at Vox, joins guest host Flora Lichtman to talk about the winners and their advances, and to share other stories from the week in science, including an FCC fine for a satellite company's space junk, concerns over drought in the Amazon rainforest, and a tale of fighting a coral-threatening algal bloom using hungry crabs. Venus Lightning Debate Gets LitVenus is an inhospitable place. The longest any spacecraft has survived on the planet's surface is thought to be around two hours. It's blazing hot. It has bone-crushing atmospheric pressure and clouds made of sulfuric acid. But is there lightning?Flybys of Venus have detected electromagnetic signals in the radio spectrum called “whistler waves” that, on Earth, are associated with lightning strikes. So some experts speculated that Venus might have lightning too—perhaps a lot of lightning. But there was no hard proof. The question of Venusian lightning has been a topic of electric debate among scientists for some 40 years.A study published in the journal Geophysical Research Letters last month used data from the Parker Solar Probe to argue that the whistler waves around Venus may have a different cause. Research scientist Dr. Harriet George and space plasma physicist Dr. David Malaspina of the Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder join guest host Flora Lichtman to talk about the finding, and what it could tell us about planets elsewhere in the galaxy.   To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. 

L'éruption du 15 janvier 2022 du volcan Hunga, dans les îles Tonga, a battu tous les records. Selon une nouvelle étude parue dans Geophysical Research Letters, l'éruption a créé un orage "superchargé" qui a produit les éclairs les plus intenses jamais enregistrés. Près de 200 000 éclairs ont été émis dans le panache volcanique tout au long de l'éruption, avec un pic à plus de 2 600 éclairs par minute !

The earth is tilting? What?  Pumping groundwater appears to have a greater consequence than ever previously thought. But now—thanks to a new study published in the journal Geophysical Research Letters—we can see that, in less than two decades, Earth has tilted 31.5 inches as a result of pumping groundwater. This equates to .24 inches of sea level rise.[1] [1] https://www.popularmechanics.com/science/environment/a44287896/why-did-earth-tilt/ Visit us at First Cause. --- Support this podcast: https://podcasters.spotify.com/pod/show/reveration/support

Located just south of Sri Lanka, it is here that Earth's gravitational pull is weakest & sea level is 100 m lower than global average. Findings published in Geophysical Research Letters.

+++ Im Tonga-Vulkan so viele Blitze gezählt wie noch nie +++ Warm oder kalt? Kraken passen sich an +++ Die womöglich älteste Penisskulptur der Welt entdeckt +++**********Weiterführende Quellen zu dieser Folge:Lightning Rings and Gravity Waves: Insights Into the Giant Eruption Plume From Tonga's Hunga Volcano on 15 January 2022/ Geophysical Research Letters, 20.06.2023RNA recoding in cephalopods tailors microtubule motor protein function / Cell, 8.6.2023The Trumpington Cross burial/ University of Cambridge, 20.06.2023Quantifying the potential persuasive returns to political microtargeting, PNAS, 12.06.2023A new human embryonic cell type associated with activity of young transposable elements allows definition of the inner cell mass/ PLOS Biology, 20.06.2023Symbolic innovation at the onset of the Upper Paleolithic in Eurasia shown by the personal ornaments from Tolbor-21 (Mongolia)/ nature sientific reports, 12.06.2023**********Ihr könnt uns auch auf diesen Kanälen folgen: Tiktok und Instagram.**********Weitere Wissensnachrichten zum Nachlesen: https://www.deutschlandfunknova.de/nachrichten

C'est une découverte à la fois étonnante et affligeante : l'axe de rotation de la Terre à bougé sur une période de 20 ans de plusieurs centimètres par an, à cause d'un changement dans la répartition des masses d'eau. En cause : le pompage des nappes d'eau fossiles souterraines pour l'irrigation, une eau qui se retrouve au final dans les océans, ce qui participe en passant significativement à la montée de leur niveau. L'étude est publiée dans Geophysical Research Letters.

En seulement 17 ans, environ 2 150 gigatonnes d'eau auraient été extraites du sous-sol, soit l'équivalent d'une hausse du niveau des océans de six millimètres. Si cette échelle peut paraître peu impressionnante, force est de constater que plus de 2000 gigatonnes d'eau, c'est extrêmement lourd, au point de modifier l'inclinaison de l'axe de rotation de la Terre. Ces résultats ont été publiés dans la revue Geophysical Research Letters, qui mentionne un déplacement de l'axe d'environ 80 centimètres entre 1993 et 2010.En effet, la Terre tourne autour d'un axe incliné par rapport à la verticale qui relie le pôle nord au pôle sud. La position précise de cet axe dépend de la répartition des masses à l'intérieur et à la surface de la Terre. Ainsi, de nombreux phénomènes peuvent affecter cette inclinaison comme les mouvements du fer liquide dans le noyau externe, les courants océaniques, les ouragans, les tsunamis, ainsi que les masses d'eau. En somme, la construction de barrages et la fonte des glaciers ne suffiraient pas à expliquer le déplacement de l'axe de rotation. Il manquait une pièce au puzzle, que les chercheurs pensent enfin avoir trouvé : la redistribution des eaux souterraines. Sur la période étudiée, le fait que les eaux souterraines se retrouvent à la surface aurait même eu un effet supérieur à celui de la fonte des glaces du Groenland et de l'Antarctique !Cet effet serait même amplifié par le fait que la majorité de l'eau pompée du sous-sol provient de l'hémisphère nord. Selon les chercheurs, si le pompage avait principalement eu lieu près de l'équateur ou des pôles, l'effet aurait été moins visible. Il est important de noter que ce phénomène a une amplitude trop faible pour avoir un impact sur les saisons ou le climat. Cependant, les chercheurs soulignent qu'il s'agit une fois de plus de l'impact global et à grande échelle des activités humaines. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

Die Themen in den Wissensnachrichten: +++ Musikgeschmack ist differenzierter als Genres +++ Sensor-Molekül für Malaria-Erreger gefunden +++ Pumpen von Grundwasser hat Erdrotation verändert +++**********Weiterführende Quellen zu dieser Folge:You don't know a person('s taste) when you only know which genre they like: taste differences within five popular music genres based on sub-genres and sub-styles, Frontiers in Psychology, 07 June 2023A Plasmodium membrane receptor platform integrates cues for egress and invasion in blood forms and activation of transmission stages, Science Advances, 16.06.2023Chronotype and mortality - a 37-year follow-up study in Finnish adults, Chronobiology International, 15.06.2023Drift of Earth's Pole Confirms Groundwater Depletion as a Significant Contributor to Global Sea Level Rise 1993–2010, Geophysical Research Letters, 15.06.2023Does vegetation accelerate coastal dune erosion during extreme events?, Science Advances, 14.06.2023The global human day, PNAS, 12.06.2023**********Ihr könnt uns auch auf diesen Kanälen folgen: Tiktok und Instagram.**********Weitere Wissensnachrichten zum Nachlesen: https://www.deutschlandfunknova.de/nachrichten

Des observations d'Uranus dans le domaine radio avec le Very Large Array apportent des preuves solides de l'existence d'un vortex polaire sur Uranus, à l'instar de ce qui existe sur les autres planètes gazeuses Jupiter et Saturne en premier. L'étude est publiée dans Geophysical Research Letters.

Giant crystal in caves sounds more like a plot twist than a geological phenomena, but this week we learn how the Naica Mine crystals were formed! Fun Paper Friday Head, D., and T. Vanorio. "Effects of changes in rock microstructures on permeability: 3‐D printing investigation." Geophysical Research Letters 43.14 (2016): 7494-7502. (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GL069334) Standford News Article (https://news.stanford.edu/2016/08/10/stanford-scientists-show-print-rocks-3-d/) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) SWUNG Slack (https://softwareunderground.org) @dontpanicgeo (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

Aurora are stellar examples of high energy physics. You need to be at the right spot to find Aurora on earth, but its not quite the same on Jupiter. What governs where and how an aurora will form? Earth and Jupiter are very different in size and speed, but why are our Auroras so different? How does Jupiter's magnetosphere bring all it's moons into line? What happens when an small independent moon brushes up against a super sized neighbour? Ganymede has it's own indepedent magnetic field. So what would happen if it got gobbled up by Jupiter? Binzheng Zhang, Peter A. Delamere, Zhonghua Yao, Bertrand Bonfond, D. Lin, Kareem A. Sorathia, Oliver J. Brambles, William Lotko, Jeff S. Garretson, Viacheslav G. Merkin, Denis Grodent, William R. Dunn, John G. Lyon. How Jupiter's unusual magnetospheric topology structures its aurora. Science Advances, 2021; 7 (15): eabd1204 DOI: 10.1126/sciadv.abd1204 R. W. Ebert, S. A. Fuselier, F. Allegrini, F. Bagenal, S. J. Bolton, G. Clark, J. E. P. Connerney, G. A. DiBraccio, W. S. Kurth, S. Levin, D. J. McComas, J. Montgomery, N. Romanelli, A. H. Sulaiman, J. R. Szalay, P. Valek, R. J. Wilson. Evidence for Magnetic Reconnection at Ganymede's Upstream Magnetopause During the PJ34 Juno Flyby. Geophysical Research Letters, 2022; 49 (23) DOI: 10.1029/2022GL099775

In this episode of Brains, Black Holes, and Beyond, Thiago Tarraf Varella sits down with Princeton researcher Dr. Jamey R. Szalay to discuss the science behind Jupiter's auroras. Dr. Szalay also discusses exciting breakthroughs being madeby the Jovian Auroral Distributions Experiment (JADE) in learning about Europa, one of Jupiter's moons. This episode of Brains, Black Holes, and Beyond (B Cubed) was produced under the 146th managing board of the Prince in partnership with the Insights newsletter. For more information about Dr. Szalay's research, feel free to check out his paper as well as the Insights article review linked below.RESOURCESSzalay, J. R., et al. (2022). Water-group pickup ions from Europa-genic neutrals orbiting Jupiter. Geophysical Research Letters, 49. https://doi.org/10.1029/2022GL098111 https://insights.princeton.edu/2022/03/protons-jupiter/CREDITSWritten and hosted by Thiago Tarraf VarellaEdited and Sound Engineered by Senna AldouboshTranscript by Ketevan ShavdiaProduced by Senna Aldoubosh For more from The Daily Princetonian, visit dailyprincetonian.com. For more from Princeton Insights visit insights.princeton.edu. Please direct all corrections to corrections[at]dailyprincetonian.com.Correction: A previous version of this description referred to the “Stellar Reference Unit” instead of the “Jovian Auroral Distributions Experiment (JADE) plasma instrument.” The 'Prince' regrets this error. 

According to a new study recently published in the journal Geophysical Research Letters, blue lakes around the world are at risk of turning green-brown if climate change continues unabated.  For the study, the research team used over five million satellite images of more than 85,000 lakes and reservoirs around the globe between 2013 and 2020 […]

Badatelé z Dallasu prostudovali satelitní snímky více než 85 tisíc jezer na planetě. Odhadují, že pokud globální teploty narostou o další 3 stupně Celsia, kolem 3800 jezer na světě by mohlo ztratit modrou barvu. Článek o tom vyšel v časopise Geophysical Research Letters.

Badatelé z Dallasu prostudovali satelitní snímky více než 85 tisíc jezer na planetě. Odhadují, že pokud globální teploty narostou o další 3 stupně Celsia, kolem 3800 jezer na světě by mohlo ztratit modrou barvu. Článek o tom vyšel v časopise Geophysical Research Letters.Všechny díly podcastu Laboratoř můžete pohodlně poslouchat v mobilní aplikaci mujRozhlas pro Android a iOS nebo na webu mujRozhlas.cz.

Last month we heard from two experts on drought and aridity; this month we're covering the other end of the spectrum and focusing on precipitation intensity and heavy downpours in the Southwestern US. Two hydrologic modelers, Dr. Dave Goodrich and Dr. Eleonora Demaria, discuss their research on intense precipitation events, as well as some of the implications of observed trends, associated challenges, and perhaps surprising opportunities. Image credit: Hans, Pixabay.Publications mentioned during interview:Demaria, E.M., Hazenberg, P., Scott, R.L., Meles, M.B., Nichols, M. and Goodrich, D., 2019. Intensification of the North American Monsoon rainfall as observed from a long‐term high‐density gauge network. Geophysical Research Letters, 46(12), pp.6839-6847.Zhang, F., Biederman, J.A., Dannenberg, M.P., Yan, D., Reed, S.C. and Smith, W.K., 2021. Five decades of observed daily precipitation reveal longer and more variable drought events across much of the western United States. Geophysical Research Letters, 48(7), p.e2020GL092293.If you're enjoying this podcast, please consider rating us and/or leaving us a review on Apple Podcasts, Podcast Addict, or Podchaser Thanks!Follow us on Twitter @RainShinePodNever miss an episode! Sign up to get an email alert whenever a new episode publishes (http://eepurl.com/hRuJ5H)Have a suggestion for a future episode? Please tell us!Come Rain or Shine affiliate links:DOI Southwest CASC: https://www.swcasc.arizona.edu/USDA Southwest Climate Hub: https://www.climatehubs.usda.gov/hubs/southwestSustainable Southwest Beef Project: https://southwestbeef.org/

Il existe deux sources de chaleur à l'intérieur de la Terre : la première est la chaleur primordiale, la chaleur résiduelle datant de la formation de notre planète et qui vient de la collision des matériaux en accrétion. La seconde est une source radiogénique, qui provient de la désintégration des éléments radioactifs contenus dans le manteau et la croûte : potassium-40, uranium et thorium. Aujourd'hui, la collaboration japonaise KamLand détecte les antineutrinos de ces désintégrations et peut étudier précisément le contenu radioactif de la Terre. Les chercheurs publient leur étude dans Geophysical Research Letters.

Megadrought is a term we've been hearing a lot of lately, with, as we find out from one of our guests, somewhat varying definitions. The term megadrought is generally used to describe the length of a drought, and not its acute intensity. A related term, aridity, is the degree to which climate lacks effective, life-promoting moisture. Simply put, aridity is permanent, while drought is temporary. But when drought extends multiple decades, as we are currently experiencing, is it actually aridification? We interviewed two experts in drought and aridification, Dr. Connie Woodhouse and Dr. Mike Crimmins, to talk about these different terms, and discuss the changes they have been observing, and hearing about from managers and ranchers in the Southwest.Episode Image credit: U.S. Drought Monitor - West. National Drought Mitigation Center; U.S. Department of Agriculture; National Oceanic and Atmospheric Administration (2022). United States Drought Monitor. University of Nebraska-Lincoln. https://droughtmonitor.unl.edu/CurrentMap/StateDroughtMonitor.aspx?West. Accessed 2022-09-06.Links and publications mentioned during the interview:Woodhouse, C. A., & Overpeck, J. T. (1998). 2000 years of drought variability in the central United States. Bulletin of the American Meteorological Society, 79(12), 2693-2714.Gangopadhyay, S., Woodhouse, C.A., McCabe, G.J., Routson, C.C. and Meko, D.M., 2022. Tree rings reveal unmatched 2nd century drought in the Colorado River Basin. Geophysical Research Letters, 49(11), p.e2022GL098781.Climate Assessment for the Southwest website.If you're enjoying this podcast, please consider rating us and/or leaving us a review on Apple Podcasts, Podcast Addict, or Podchaser Thanks!Follow us on Twitter @RainShinePodNever miss an episode! Sign up to get an email alert whenever a new episode publishes (http://eepurl.com/hRuJ5H)Have a suggestion for a future episode? Please tell us!Come Rain or Shine affiliate links:DOI Southwest CASC: https://www.swcasc.arizona.edu/USDA Southwest Climate Hub: https://www.climatehubs.usda.gov/hubs/southwestSustainable Southwest Beef Project: https://southwestbeef.org

Chad M. Baum discusses his expert elicitation work on space mirrors. (Reading list / glossary below paper link) Paper: Renewable and Sustainable Energy Reviews Volume 158, April 2022, 112179 Between the sun and us: Expert perceptions on the innovation, policy, and deep uncertainties of space-based solar geoengineering Authors: Chad M.Baum, Sean Low; Benjamin K.Sovacool. https://doi.org/10.1016/j.rser.2022.112179. Acronyms CDR Carbon Dioxide Removal GEO Geosynchronous Orbit GENIE (project) GeoEngineering and Negative Emissions Pathways in Europe IPSS Inter Planetary Sun Shade ISS International Space Station LEO Low-Earth Orbit NETs Negative Emissions Technologies RSER (journal) Renewable and Sustainable Energy Reviews (since I messed it up initially) SAI Stratospheric Aerosol Injection SEL Sun-Earth Lagrange point SRM Solar Radiation Management Other peer-reviewed articles from the GENIE project: Low, S., Baum, C.M., & Sovacool, B.K. (2022). Rethinking Net-Zero systems, spaces, and societies: “Hard” versus “soft” alternatives for nature-based and engineered carbon removal. Global Environmental Change, 75, 102530. https://doi.org/10.1016/j.gloenvcha.2022.102530 Low, S., Baum, C. M., & Sovacool, B. K. (2022). Taking it outside: Exploring social opposition to 21 early-stage experiments in radical climate interventions. Energy Research & Social Science, 90, 102594. https://doi.org/10.1016/j.erss.2022.102594 Sovacool, B.K., Baum, C.M., & Low, S. (2022). Risk-risk governance in a low-carbon future: Exploring institutional, technological, and behavioral tradeoffs in climate geoengineering pathways. Risk Analysis. https://doi.org/10.1111/risa.13932 Solar sails: Matloff, G., Bangs, C., & Johnson, L. (2014). Harvesting Space for a Greener Earth. Springer: Heidelberg. https://doi.org/10.1007/978-1-4614-9426-3 Roy, K I. (2001). “Solar Sails: An Answer to Global Warming?” presented at STAIF 2001 Albuquerque, NM, February 11-14. Available at: http://www.ultimax.com/whitepapers/2001_3a.html. On some of the more interesting proposals, these are relevant: Kennedy, R. G., Roy, K. I., & Fields, D. E. (2013). Dyson Dots: Changing the solar constant to a variable with photovoltaic lightsails. Acta Astronautica, 82(2), 225–237. https://doi.org/10.1016/j.actaastro.2012.10.022 Angel, R. (2006). Feasibility of cooling the Earth with a cloud of small spacecraft near the inner Lagrange point (L1), Proceedings of the National Academy of Sciences, 103, 17184-9. IRS and Airbus (2020). International Planetary Sun Shield (IPSS) - Gigasails in Space. IPSS High-level Concept. The Institute of Space Systems (IRS) and Airbus Defence & Space: Bremen, Germany And concerning modelling studies, here are the two I specified: Lunt, D. J., Ridgwell, A., Valdes, P. J., & Seale, A. (2008). “Sunshade World”: A fully coupled GCM evaluation of the climatic impacts of geoengineering. Geophysical Research Letters, 35(12), L12710. https://doi.org/10.1029/2008GL033674 Sánchez, J.-P., & McInnes, C.R. (2015). Optimal Sunshade Configurations for Space-Based Geoengineering near the Sun-Earth L1 Point, PLoS One, 10(8), e0136648. Various SciFi ones: https://us.macmillan.com/books/9781250264930/sweepofstars https://www.goodreads.com/book/show/13651.The_Dispossessed (and what failed me in the moment, was The Hainish Cycle, as the name for the whole series) https://www.kimstanleyrobinson.info/content/mars-trilogy https://www.goodreads.com/book/show/414999.Childhood_s_End

Moa Sporre schools @geoengineering1 on what happens to aerosols that fall out of the stratosphere and into cirrus clouds. Prior project mentioned: CARIBIC project (nowadays part of IAGOS): https://www.caribic-atmospheric.com Paper discussed: Sporre, M. K., Friberg, J., Svenhag, C., Sourdeval, O., & Storelvmo, T. (2022). Springtime stratospheric volcanic aerosol impact on midlatitude cirrus clouds. Geophysical Research Letters, 49, e2021GL096171. https://doi. org/10.1029/2021GL096171

Water has some pretty amazing properties. We dive into some of the strange things water does from the molecular level all the way to planet scale water flows. We all know H2O but studying the way water molecules move around each other is very difficult to isolate. H2O molecules had to be taken to 0.4 Kelvin and shot with a powerful laser to shed light on the way they shake. The way H2O interacts between molecules by moving, rotating and shaking can help explain some of the weird properties. H2O has weird properties like being at its highest density at 4 degrees. Turning salt water into fresh water often involves a lot of electricity, but a new method using Ionic salts may get by with barely any heat. How can water make its way down towards the core of the earth? Water masqueraded inside minerals to migrate deep down beneath the surface of the earth. Martina Havenith-Newen, Raffael Schwan, Chen Qu, Devendra Mani, Nitish Pal, Gerhard Schwaab, Lex van der Meer, Britta Redlich, Claude LeForestier, Joel Bowman. Observation of the low frequency spectrum of water dimer as a sensitive test of the water dimer potential and dipole moment surfaces. Angewandte Chemie International Edition, 2019; DOI: 10.1002/anie.201906048 Hyungmook Kang, David E. Suich, James F. Davies, Aaron D. Wilson, Jeffrey J. Urban, Robert Kostecki. Molecular insight into the lower critical solution temperature transition of aqueous alkyl phosphonium benzene sulfonates. Communications Chemistry, 2019; 2 (1) DOI: 10.1038/s42004-019-0151-2 Jun Tsuchiya, Koichiro Umemoto. First‐Principles Determination of the Dissociation Phase Boundary of Phase H MgSiO 4 H 2. Geophysical Research Letters, 2019; DOI: 10.1029/2019GL083472

According to a new study, approximately 70% of the world's oceans could be suffocating from a lack of oxygen by 2080 as a consequence of climate change.  This has the potential to impact marine ecosystems all around the world.   The study, which was recently published in the journal Geophysical Research Letters, is the first to […]

Une équipe internationale de chercheurs viennent de découvrir que certaines aurores polaires de Saturne sont générées par les vents tourbillonnants à ses pôles et pas uniquement par la magnétosphère. Un phénomène jamais vu auparavant. L'étude est publiée dans Geophysical Research Letters.

Eñaut Izagirre glaziologoak Piriniotako glaziarren egoeraz hitz egin digu. Desagertzen ari dira, eta azkar. Aditu-talde batek jarri dizkio zenbakiak desagertze-abiadura horri, eta Geophysical Research Letters aldizkarian argitaratu dituzte. Mendiaren pasioa eta ikerketa geofisikoa oso modu argian azalduta....