Podcasts about noctilucent

While some Martian clouds may look like the kind seen in Earth's skies, high clouds include frozen carbon dioxide, or dry ice, instead of water crystals.

GB2RS News Sunday the 23rd of June 2024   The news headlines: RSGB Convention workshops and practical sessions – what would you like? RSGB Team interviewed by ICQ Podcast at the Dayton Hamvention in May Don't forget to try the updated RSGB Discovery Scheme Do you like making things? Are you interested in finding out more about the Raspberry Pi or programming an Arduino? Have you heard about the NanoVNA and DragonOS but don't know where to start? The RSGB wants its 2024 Convention to offer practical sessions to help radio amateurs try something new, develop their skills and go away inspired! If you can offer to run a workshop or a practical session over the weekend of the 11th to the 13th of October, or you'd like to take part in one, please email the RSGB Convention Team via convention@rsgb.org.uk by the 3rd of July. As part of its strategy, the RSGB wants to ensure that this prestigious annual event not only meets the needs of its members but also helps every radio amateur to share their love of the hobby with others. Members of the RSGB Team, including RSGB President John McCullagh, GI4BWM and RSGB General Manager Steve Thomas, M1ACB, had a successful time at the Dayton Hamvention in May. The event was a brilliant opportunity to engage with radio amateurs from around the world and it resulted in 132 people joining the RSGB. It also provided several media opportunities with podcasters, YouTubers and local news outlets. Martin Butler, M1MRB from ICQ Podcast was one of those who interviewed the President and the General Manager. The interview covered a wide range of topics, from using the new licence conditions as part of outreach, to the RSGB's role in defending the spectrum and even to the RSGB President's amateur radio activities with both RAYNET UK and SOTA! For the full interview go to Episode 432 on icqpodcast.com and listen just before two hours into the episode. Have you tried the updated RSGB Discovery Scheme? Now called the Discovery Logbook, there are fewer requirements, an easy-to-follow programme and exciting links with external organisations such as Parks On The Air and Worked All Britain. There are also some great RSGB Awards to work towards if you'd like to include those in your programme of activities. As a relatively new radio amateur, Jim, ME7HEF had found that the sheer breadth of the hobby made it a little difficult to know where to start. The Discovery Scheme gave him a simple structure to try various aspects of amateur radio and he has enjoyed it. Read more about Jim's experience on the RSGB website at rsgb.org/your-stories and follow the links to find out how you could try something new using the Discovery Logbook. The RSGB is looking for an individual to take on the complex role of Editor of the annual RSGB Yearbook, following the retirement of the previous Editor. This is a paid post, working part-time from home for a few months each year, and is offered as a fixed-term contract. You will need experience of editing material from a wide range of sources and working to deadlines, as well as having attention to detail. An understanding of desktop publishing programs such as InDesign will be helpful along with knowledge of the breadth of amateur radio in the UK today. If you are interested in this post, please email authors@rsgb.org.uk with an appropriate CV or covering statement of your abilities. Last weekend was 1940s weekend at the Bletchley Park Museum. The RSGB National Radio Centre, or NRC, supported the event by hosting the World War Two Special Operations Executive radio station, GB1SOE. The station, operating on the 40m band, attracted lots of visitor attention, as did GB3RS which was busy on the air as part of the Museums on the Air weekend. NRC volunteers made QSOs and invited visitors to pass greetings messages. If appropriate, the volunteers used the new licence conditions to allow visitors to run QSOs themselves under supervision. The weekend was a huge success and 1,211 people visited the RSGB National Radio Centre. The Society would like to thank all the NRC volunteers who delivered such an enjoyable weekend. Alexanderson Day will take place on Sunday the 30th of June 2024. The unique Alexanderson alternator, with the callsign SAQ, is scheduled for two transmissions on 17.2kHz using CW. At 0830UTC, the alternator will be started up and at 0900UTC the first transmission will take place. A second transmission is scheduled for 1200UTC. You can read more about the event and historic transmitter at alexander.n.se The Bath Based Distance Learning team is busy enrolling students into its pre-course classroom for its forthcoming course for the Full Licence exam. The team has received enquiries about whether its course is suitable for the Direct to Full exam. The course content focuses on the Full level syllabus items, which are only a part of the Direct to Full syllabus. Learners are expected to know the Foundation and Intermediate material already. Parallel study is possible, but the Bath Based Distance Learning Full Licence course alone would not be sufficient to ensure a pass in a Direct to Full exam. More details can be found in the latest edition of RadCom, but please note that the email address provided to RadCom was incorrect; anyone wanting details of the Bath Based Distance Learning course should email Steve, G0FUW, using g0fuw@bbdl.org.uk  Guisborough and District Amateur Radio Club is organising a mini DXpedition to Scotland, on the Isle of Lewis from the 22nd to the 29th of September. The team has a couple of spaces left and welcomes amateurs from other clubs who would like to join in. For more information email rm.dutton@virginmedia.com And finally, don't forget to listen out for all the amateur stations that will be on the air during the Museums on the Air activity today, the 23rd. For more information about the event visit tinyurl.com/imw2024  And now for details of rallies and events The Newbury Radio Rally is taking place today, Sunday the 23rd of June. The venue is Newbury Showground, next to junction 13 of the M4 motorway in Berkshire, RG18 9QZ. The event includes a display area with an amateur radio station, exhibits, special interest groups, clubs and societies. The doors open to sellers at 8 am, and to visitors at 9 am. Lots of free parking is available and entry costs £3 for visitors. A seller's pitch costs £15. For more information visit nadars.org.uk Dunstable Downs Radio Club would like to invite everyone to its annual boot sale and radio rally on Sunday the 30th of June at Stockwood Park in Luton. As always, there will be plenty of plots available on the day for £10 each. The fee for car parking will be £4 per vehicle for visitors. Updates will be posted to Dunstable Downs Radio Club's Facebook page. To add yourself to the email list visit ddrcbootsale.org Burton on Trent Amateur Radio Club Mini Rally and Barbecue is set to take place on Saturday the 6th of July. The event will take place at The Barley Mow public house, Burton on Trent, DE5 9AP. Ample car parking will be available, and admission will be free. Apart from all the usual stalls, there will be a live demonstration of the Club's remote access station. For more information phone Barry on 01283 540570 or see the Club's Facebook page. Now the Special Event News Marking the 25th anniversary since Poland joined the North Atlantic Treaty Organisation, special callsign HF25NATO will be active until the 31st of August. QSL via Club Log's OQRS. Only 100 limited edition QSL cards will be distributed. These will be issued first-come, first-served so call in quick! For details of a certificate that is available visit tinyurl.com/hf25nato Special callsign SK100FRK is active from Sweden to celebrate the 100th anniversary of Falu Radio Club's formation in 1924. The station is active until the end of the year on all bands and operators are using SSB, CW and FM. For details of an available award see QRZ.com  Now the DX news Domenico, IK1MNF is active as IK1MNF/IA5 from Isola d'Elba, EU-028, until the end of September. He is operating using SSB on the 20 to 6m bands. QSOs will be uploaded to Club Log. QSL via Domenico's home call. Chas, NK8O is active as 5H3DX from near Dodoma, Tanzania until the 30th of June. He is operating using CW, FT8 and FT4 on the 30 to 10m bands. QSL directly to NK8O or via eQSL. Now the contest news Today, the 23rd, the 50MHz CW Contest runs from 0900 to 1200UTC. Using CW on the 6m band, the exchange is signal report, serial number and locator. On Tuesday the 25th, the SHF UK Activity Contest runs from 1830 to 2130UTC. Using all modes on 2.3 to 10GHz frequencies, the exchange is signal report, serial number and locator. On Thursday the 27th, the 80m Club Championship SSB Contest runs from 1900 to 2030UTC. Using SSB on the 80m band, the exchange is signal report and serial number. On Sunday the 30th, the UK Microwave Group 5.7 and 10GHz Contest runs from 0600 to 1800UTC. Using all modes on 5.7 and 10GHz frequencies, the exchange is signal report, serial number and locator. Now the radio propagation report, compiled by G0KYA, G3YLA, and G4BAO on Thursday the 20th of June 2024 We had a relatively quiet week, with the Sun generally being settled. There were coronal mass ejections, but they were on the far side of the Sun and not Earth-directed. There were no X-class flares, although we did have a few C- and M-class events. The solar flux index declined to 167 but has since recovered and stood at 196 on Thursday the 20th. Active regions 3712, 3713 and 3716 are all large and 3712 has been emitting flares. However, all three regions will soon rotate out of view, so should not be a threat in the coming week. As such, HF conditions have been reasonable given the time of year. Maximum usable frequencies over a 3,000km path during daylight have generally been between 14 and 21MHz, although there have been occasional openings up to 24MHz. Sporadic-E remains the main propagation mode on the 10m band. Next week NOAA predicts that the solar flux index will remain in the 175 to 190 range and geomagnetic conditions are predicted to be mainly settled. However, the far-side coronal mass ejections we have been seeing suggest we could be in for a rough ride in about a week to ten days. So, this week could be a good time for HF propagation. And now the VHF and up propagation news from G3YLA and G4BAO The weather is trying to change to a more summer-like pattern, which means that the main jet stream will be farther north than recently and this will make Sporadic-E harder to find than during the recent strong jet stream pattern over Europe. For most UK stations, the emphasis on Sporadic-E paths will gradually shift from the typical central Europe and Mediterranean to perhaps Scandinavia and the Baltic states. The relatively new player this time around will be high pressure which comes and goes during the period but should bring some useful Tropo. In these high-summer days, sea or coastal paths are often good, but paths across hot land do not fare well in summer during the daytime. Concentrate on the night or early morning, especially if it is foggy. There will be occasions when small lows and fronts edge into the south and west of the British Isles and, in typical summer fashion, may bring a risk of thundery showers. Any local, heavy rain means good conditions for rain scatter on the GHz bands. Meteor scatter again remains in the random category, which usually peaks around the dawn period. Lastly, a note about aurora which has been kept at arm's length although there have been several periods with a slightly enhanced Kp index. The light summer nights mean that visible auroras are very unlikely but do look out for noctilucent clouds on the northern horizon around midnight. Noctilucent clouds are thin, wispy clouds that glow with a blue or silvery hue at night when illuminated by sunlight from below the horizon. The Moon is at minimum declination this coming weekend so peak elevation is low and windows of usage are short. EME path loss is falling as we approach perigee next Thursday the 27th. 144MHz sky noise is high this weekend but falls to low early next week. And that's all from the propagation team this week.

Noctilucent, or nightshining clouds, sparkle from the edge of space on the twilight sky. Find out how you can see these for yourself as well as our usual stargazing highlights in this week's podcast guide, Star Diary, 27 May to 2 June 2024.   Transcript: https://www.skyatnightmagazine.com/podcasts/star-diary-27-may-2024   How to photograph a comet: https://www.skyatnightmagazine.com/astrophotography/astrophoto-tips/how-to-photograph-a-comet   Subscribe to BBC Sky at Night Magazine and submit your astrophotography images over on our website: https://www.skyatnightmagazine.com Learn more about your ad choices. Visit podcastchoices.com/adchoices

Meet Space Weather expert Krista Hammond who has been forecasting with the Met Office for 16 years. Kirsta is an operational Space Weather Meteorologist as well as a senior Account Manager for Space Weather.As we enter into a solar maximum, Space Weather activity has been hitting the headlines, not only because of the frequency of the spectacular display of the aurora borealis but because there has been a forecast for one of the largest geomagnetic storms to have hit the earth for 20 year. This level of storm is powerful enough to knock out power grids, networks, navigation and more.The scale of space weather is simple mind blowing. Krista talks about the difference between solar flare, solar radiation storms and coronal mass ejections (CME's). She explains the remarkable speed that each can travel at and how much warning we might potentially have before they hit the Earth. A CME is in a whole league to its own and can affect not just a local region but an entire hemisphere.Krista tells us that unlike modern forecasting for the weather on Earth, there is very limited ways to understand what's happening in the sun. The main way to do this is to use satellites which look at the sun in different wavelengths and well as looking at the sun's magnetic fields.We learn why we need to know what a ‘Lagrange points' is and why a European Space Agency mission called VIGIL could revolutionise space weather forecasting.Listen on to find out why Krista loves summer, Noctilucent clouds and why even though she is a space weather forecaster she has never seen the Northern Lights!If you would like to contact Krista she is on LinkedIn - Krista Hammond - Space Weather.You can follow the podcast on ‘X' we are @4loveofweather and on Instagram @fortheloveofweather.Thanks so much for listening and supporting the podcast, and we hope you leave this episode loving the weather just a little bit more.

Chasing the Aurora Borealis is a dream for many photographers and a dream come true for those who can successfully do it. Of course, not all of us have the luxury of living in an area where it can be done with relative ease, so when we travel to locations where it is possible, we want to maximize our chances at seeing and photographing incredible solar storms. Today's guest on the F-Stop Collaborate and Listen Podcast, Adrien Mauduit, has become an expert at chasing the Aurora and joined us to talk all about his workflows for maximizing success and fully understanding all of the variables that go into a successful Aurora chase. On this week's episode, we discuss: How Adrien got obsessed with photographing and filming the Aurora. Adrien's Aurora chasing workflow. Planning trips to photograph the Aurora. Debunking common myths and misconceptions about the Aurora, including the KP Index. Running a business solely dedicated to photographing and filming the Aurora. Advice for young photographers looking to make it in our field. Adrien's in-depth Aurora chasing course (use the code FSTOPCOLLAB2023 for 10-% off). Noctilucent clouds and how Adrien works with non-profits to study them. And a lot more! If you enjoyed our conversation, you can listen to our bonus episode on Patreon where Adrien and I discuss the absolutely radical event that he became involved in over on Twitter with a user named Massimo and Elon Musk. Other topics/links discussed on the podcast this week: Support the podcast on Patreon. Dr. Skov. Halo CME. NOAA Space Weather Prediction Center. Paul Smith and Sprites. Project PoSSUM. Watch podcast episodes on YouTube, where we overlay photos with our conversation via video. Here is who Adrien recommended on the podcast this week: Alyn Wallace. Petr Horalek. Yuri Beletski. Benjamin Bakarat. Ralf Rohner. I love hearing from the podcast listeners! Reach out to me via Instagram, Facebook, or Twitter if you'd like to be on the podcast or if you have an idea of a topic we can talk about. We also have an Instagram page, a Facebook Page, and a Facebook Group - so don't be shy! We also have a searchable transcript of every episode! Thanks for stopping in, collaborating with us, and listening. See you next week. P.S. you can also support the podcast by purchasing items through our B+H affiliate link.

On this episode of Astronomy Daily, Tim and Halle bring you latest on the Gemini North Telescope's capture of a supernova aftermath and other space news. In this episode, you will be able to: · Stay ahead with groundbreaking astronomy news that will pique your curiosity. · Uncover the spellbinding secrets behind Planet Hat-P 32 b's disappearing act. · Get a rare glimpse into the spectacular phenomenon of Noctilucent clouds found in Earth's atmosphere. · Experience the powerful aftermath of a supernova through the lens of the Gemini North Telescope. · Demystify the complexities of solar wind and its implications on our solar system with help from Parker Solar Probe. Get ready to be captivated by Hallie, our skilled AI reporter with a knack for breaking down complex celestial concepts for everyone to enjoy. Over her career, Hallie has established a strong reputation in the field for her thorough research on deep-space phenomena, including supernovae, galaxies, and black holes. Today, she's here to discuss the groundbreaking capture of a supernova aftermath by the Gemini North Telescope, shedding light on how technology is helping us understand the universe. Join Hallie and Tim to explore the wonders of the cosmos and learn more about this awe-inspiring observation. The resources mentioned in this episode are: · Visit Airbus' website to learn more about Roxy, the system that extracts oxygen and metals from lunar regolith. · Check out the Frownhoffer, the German Research Institute, and Boston University websites to see their collaboration with Airbus on the Roxy project. · Explore the European Space Agency's website to learn more about the Mars Express Orbiter and its mapping of the Martian surface. · Visit SpaceNuts.io to listen to the SpaceNuts podcast with Steve Dunkley on Mondays and Astronomy Daily with Tim Gibbs on Fridays. · Look up at the Northern Hemisphere's northern skies an hour or two after sunset and before sunrise over the next few months to see rare noctilucent clouds with the naked eye. · Follow SpaceWeather.com to stay updated on sightings of noctilucent clouds. · Read the journal Science Advances to learn more about the discovery of the giant tails of helium escaping from the planet Hat P 32 b. · Check out the University of Texas at Austin's McDonald Observatory website to learn more about the Hobby Eberley Telescope. · Follow NASA's Sunkissing Parker Solar Probe mission to stay updated on its findings about the solar wind. · Visit the D Noctilucent Clouds: The highest, driest, coldest, and rarest clouds on Earth. Noctilucent clouds (NLCs) are unique and intriguing atmospheric phenomena found in the Mesosphere, a layer above the stratosphere and below the thermosphere, around 47 to 53 miles above Earth's surface. Formed when water vapor freezes into ice crystals that attach to dust and particles left by meteors, NLCs offer a valuable opportunity for observing changes in Earth's atmosphere. These spectacular clouds are best visible around the summer solstice in late June through the end of July, making them a fascinating subject for skywatchers and scientists alike. As Tim Gibbs and Halle discuss noctilucent clouds in the episode, they touch upon the importance of understanding these rare clouds to study Earth's atmosphere and the effects of climate change. The friendly conversation drives home the point that these mesmerizing natural wonders truly deserve our attention and study. Supernova in the Pinwheel Galaxy: The discovery of the supernova SN 2023 IX by an amateur astronomer and how the Gemini North Telescope will allow astronomers to study it. Amateur astronomer Koichi Itagaki's discovery of supernova SN 2023 IX in the Pinwheel Galaxy is a testament to the passion and curiosity of stargazers worldwide. The aftermath of this supernova serves as a fantastic example of celestial phenomena that can be detected and studied by both professional and amateur astronomers. The Gemini North Telescope's observations of SN 2023 IX will enable astronomers to analyze how the supernova's light fades over time and how its spectrum evolves, shedding light on the complex physics of stellar explosions. Tim Gibbs and Halle's conversation about the discovery of SN 2023 IX leads them to highlight the importance of amateur astronomers contributing to the scientific community. By sharing this inspiring story, they encourage listeners to stay curious and participate in the vast and fascinating world of astronomy. Learn how the Gemini North Telescope captures supernova remnants and deepens our understanding of the universe. The Gemini North Telescope, after a seven-month hiatus, is back in action and it captured the stunning aftermath of a supernova in the Pinwheel Galaxy. Supernovae are massive explosions of stars, which provide valuable information about the history and evolution of the universe. By observing supernova remnants, scientists can gain insights into the formation of heavy elements and the rate of expansion of the universe. This knowledge can also contribute to our understanding of stellar life cycles and the overall structure of galaxies. During the episode, Tim Gibbs and Halle discuss the discoveries made by the Gemini North Telescope, as well as the story of amateur astronomer Koichi Itagaki, who found the supernova named SN 2023 IX. The discussion highlights the importance of such observations in helping astronomers study the light spectrum of these explosions, and how this data can enhance our understanding of the physics behind supernovae. Giant Tails of Helium: The dramatic jets of helium escaping from the planet Hat P 32 b. The planet Hat P 32 b has captured the attention of astronomers due to its dramatic jets of helium, which extend more than 50 times the planet's radius. These remarkable tails of gas make it an exceptional case in the realm of exoplanets. The study of these tails can provide insights into the process and mechanisms of atmospheric escape, wherein lighter gases like helium are stripped away from a planet by the radiation and stellar wind coming from its host star. This understanding can shed light on the evolution and history of exoplanets' atmospheres. In the episode, Halle shares details about the fascinating discovery of Hat P 32 b's incredible helium tails, which were observed by a team of astronomers using the Hobby Eberly Telescope at the University of Texas at Austin's McDonald Observatory. The friendly discussion between Tim Gibbs and Halle emphasizes the significance of this finding in the field of exoplanetary research. Source of Fast Solar Wind: NASA's Parker Solar Probe discovers that the fast solar wind comes from coronal holes in the Sun's atmosphere and how this information can help predict solar storms. NASA's Parker Solar Probe has made groundbreaking discoveries regarding the source of fast solar wind – the charged particles that stream from the Sun's corona at incredible speeds. The probe's close approach to the Sun revealed that fast solar wind originates from coronal holes in the Sun's atmosphere. This information is crucial for understanding how solar storms and space weather events are generated, which can have significant impacts on communication and power systems on Earth, as well as create stunning auroras. In the episode, Tim Gibbs and Halle share their excitement about the Parker Solar Probe's findings and the importance of understanding solar wind's origins. Their conversation highlights how studies of solar activity can help us better predict and respond to potential space weather events, safeguarding our planet's interconnected systems.

An unusual episode of Dog Stars sees Chris and Mr Max out before sunset. The most exciting thing is the possibility of treats, but we also talk about eerie Noctilucent - night-shining - clouds, visible after sunset in the summer sky. These beautiful, mysterious apparitions are worth keeping an eye out for if the skies are clear - and we talk about the possible link to a nineteenth century volcano and the space shuttle. You can find out more about noctilucent clouds with the Sky at Night's Pete Lawrence here: https://www.skyatnightmagazine.com/astrophotography/astrophoto-tips/photograph-motion-noctilucent-clouds/ and there's a beautiful image of them from the space station by Chris Hadfield https://www.universetoday.com/99606/noctilucent-clouds-imaged-by-astronaut-chris-hadfield/ [Since we got back, Chris learnt that 'the year with no summer' was due to another 19th century volcano, not Krakatoa. He apologies to Mr Max, and to you, for the error].

Watch out for Noctilucent clouds, and Mars and Venus continue to dominate the evening sky in this week's stargazing guide. Transcript [URL: https://www.skyatnightmagazine.com/podcasts/star-diary-22-may-2023/] Noctilucent clouds: what are they and how to see them [URL: https://www.skyatnightmagazine.com/advice/skills/noctilucent-clouds-what-they-are-and-how-to-see-them/] Learn more about your ad choices. Visit podcastchoices.com/adchoices

Mars makes its way through Gemini, while Saturn begins to emerge in the week's stargazing guide. Transcript [URL: https://www.skyatnightmagazine.com/podcasts/star-diary-24-april/ Aurora hunting guide for travellers [URL: https://www.skyatnightmagazine.com/space-science/travellers-guide-aurora-hunting/] Noctilucent clouds: what are they and how can you see them [URL: https://www.skyatnightmagazine.com/advice/skills/noctilucent-clouds-what-they-are-and-how-to-see-them/] Learn more about your ad choices. Visit podcastchoices.com/adchoices

In this episode we hear from planetary scientist Victoria Hartwick who works with the Mars Climate Modeling Center at NASA Ames. The conversation includes a discussion about Dr. Hartwick's paper that explores whether wind turbines on Mars could be a viable source of energy for future humans on that planet, then ranges to how clouds form in the highest reaches of the atmosphere, how climate models work, and how planetary climates, including our own here on Earth, are affected by the space environment around them. Quick Glossary Exoplanet - Any planet outside of our solar system (i.e., a planet revolving around a star that is not our Sun) Climate model - Computer programs that simulate weather patterns over time Kelvin - The temperature scale used in exoplanetary science Ablation - The breaking up of a meteor when it travels through Earth's atmosphere Noctilucent clouds - Pearlescent extremely high-altitude clouds visible at dawn and dusk. They are formed on meteoric smoke.

Follow the show: https://www.monstercat.com/COTW Tracklist 00:45 Dirty Audio & Max Styler - Roller Coaster 04:38 Sullivan King - It's Gonna Hurt 07:50 Ace Aura - Destiny 11:34 Skybreak - Lightbringer [Monstercat Exclusive] 14:53 Bossfight - Vermin 17:29 F.O.O.L & JNATHYN - Tension [Monstercat Exclusive] 20:55 Dr. Ushūu - Don't Let Me Down [Uncaged Spotlight] 23:41 Bossfight - No Sleep VIP 27:10 MUZZ, Koven, Feint - Worth The Lie [Community Pick] 31:46 IVORY - Mindbreak 34:50 GG Magree - Turn Me On 37:26 Conro - Therapy  40:20 Conro - Tell Me [Instinct Spotlight] 43:14 Dokho - Saganaki [Silk Spotlight] 46:37 Danny Leax - Silence (ft. Sonam) 49:55 OBLVYN - Shift 52:52 Subtact - What It's Like (ft. Noctilucent) [2016] 56:30 Blanke - Talk to You (ft. Sofia Quinn) [Monstercat Exclusive] Thank you for listening to Monstercat: Call of the Wild! Learn more about your ad choices. Visit megaphone.fm/adchoices

The light display from a rocket launch may hang around long after the rocket itself is gone. But the display is visible only from narrow strips of Earth's surface — mainly from Canada, Scandinavia, and Russia. The rockets may create bands of noctilucent clouds — Latin for “night shining.” The clouds form at altitudes of about 50 miles — the highest clouds of all. Water vapor freezes around grains of dust from meteors, forming ice crystals. The clouds are visible only about an hour before sunrise or after sunset, when the Sun is at the right angle to light up the clouds but not the ground. Noctilucent clouds were first reported in the late 1800s. At first, they were seen only fairly close to the poles. In recent decades, though, they've crept toward lower latitudes. And they've become a lot more common. Much of the increase may be the result of climate change, which pumps more water vapor into the upper atmosphere. But a recent study says that rocket launches are boosting the clouds as well — especially launches that take place in the morning. That's when high-altitude winds are most efficient at pushing rocket exhaust toward the poles. And the launch-influenced clouds are most common in July, when the combination of high-level water vapor and temperature is just right. With the number of launches reaching record levels, so may the reports of noctilucent clouds — beautiful displays in the twilight.  Script by Damond Benningfield Support McDonald Observatory

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. Noctilucent cloud season begins! - June 1st Moon occults Ceres. But it's in the daytime. :^( - June 6th Lunar X visible, 29 Amphitrite at opposition and magnitude 9.5. - June 7th Lunar Straight wall and first quarter Moon, 41 Daphne at opposition and 9.8 magnitude. - June 11 Venus 1.6-degrees South of Uranus. - June 11 Venus 1.6-degrees South of Uranus - June 14th Full Moon, Mercury Greatest elongation West so visible in morning sky. - June 18th Saturn 4-degrees North of Moon. - June 19th Vesta 0.7 degrees north of Moon - Occultation for S. America and Antarctica. - June 21 Last quarter Moon, Summer Solstice, Jupiter 3-degrees North of the Moon. - June 22 Mars 0.9 degrees north of Moon - occultation for South Pacific. - June 24 Uranus 0.05 degrees North of Moon - Occultation from Hawaii to Australia. - June 26th Venus 3-degrees south of the Moon. - June 27th Mercury 4 degrees south of the Moon. - June 29th New Moon.   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.

Lichtende nachtwolken of noctilucent clouds. Een vreemd verschijnsel bovenin onze atmosfeer. Vanwaar de wetenschappelijke interesse in dit fenomeen? U hoort het in deze aflevering van Zimmerman in Space. https://nl.wikipedia.org/wiki/Lichtende_nachtwolk (https://nl.wikipedia.org/wiki/Lichtende_nachtwolk) https://en.m.wikipedia.org/wiki/Noctilucent_cloud http://aim.hamptonu.edu/ https://www.oneingredientchef.com/

Another collection that's seen more ambient, ethereal, atmospheric music for our second March edition. Always eager to hear a new album from Steve Jolliffe; like the last few releases, just one track of changing structures & sounds. New faces to grace our airways are Elinch from German, a modular synthesist whose calm, slow-moving sound canvases develop into minimalist ambient epics. Female artist Allegorist has been meandering through stories with her purposeful and introspective take on electronic music, with London-based musician and filmmaker going under the name of Blessed Are The Hearts That Bend has a soundtrack to a non-existent film; listeners can create the movie in their head as the album washes over you, a film without pictures. It was totally unexpected to hear about the recent passing of Thomas Fanger, a significant player as a solo artist & with his collaboration with Manikin musician & label owner Mario Schonwalder & friends over the last couple of decades. As we sadly say farewell to Thomas, we've chosen the chill-out track, ‘Mopho Me' from the 2013 EP “Mopho Me Babe Mixes” with his good friend Mario & Klaus Hoffman Hock, who parted this world five years ago. Playlist No 208 02.12 Fanger & Schonwalder feat: Cosmic Hoffman ‘Mopho Me' (EP Mopho Me Babe Remixes) 08.56 Thaneco ‘The Jovians' (album Lunar Monolith) https://thaneco.bandcamp.com 17.23 Thaneco ‘Light Bringer' 22.07 Steve Jolliffe ‘Images' (album Images) *** www.stevejolliffe.uk 33.22 The Allegorist ‘Redwinged Phoenix' (album Blind Emperor) https://theallegorist.bandcamp.com 40.02 Blessed Are The Hearts That Bend ‘Present' (album Sadness Be Damned) https://blessedaretheheartsthatbend.bandcamp.com 45.08 Blessed Are The Hearts That Bend ‘Staeee' 48.16 Jeff Greinke ‘Around The Corner' (album Noctilucent) https://greinke.bandcamp.com 55.35 Jeff Greinke 'Tunnel' 01.00.53 Jarguna ‘Blue Horizon' (album Neogene) www.projekt.com 01.08.53 Michael Stearns ‘In The Begining' (album Planetary Unfolding) https://.projekt.bandcamp.com play from March 28th. 01.16.20 Lucas Tripaldi ‘La iniciación' (album Lacandona) https://cyclicaldreams.bandcamp.com 01.20.25 Lucas Tripaldi ‘Ofrenda' 01.24.29 Rene Van Der Wouden ‘Impact Basin in Northern Hemispheres' (album Tangerine Sands) *** https://cyclicaldreams.bandcamp.com 01.34.03 The Fourth Dimension Project ‘Purple' 01.38.55 Anna B May ‘Essence' (single) www.higherlevel.media 01.42.14 David Gerard ‘Follow The Path To The Sea' (album the Science Of Sleep) https://ambientism.bandcamp.com 01.47.58 David Gerard ‘Unawake (Calling)' 01.52.29 lthaki 'Time After Time' (album Cornerstone) https://txtrecordings.bandcamp.com txtrecordings@gmail.com 01.58.25 lthaki ‘Cornerstone' 02.02.32 Nam-Khar & Vortex The Temptation' (album Nag-Hammadi) www.winter-light.com 02.10.18 Digitonal ‘Gold Of The Azure, Marconi Union Remix' www.theambientzone.co.uk 02.16.10 Anantakara 'There Is Something' (album There Is Something) https://auralfilms.bandcamp.com 02.20.57 Anantakara 'Toward Clarity' 02.27.20 Elinch ‘Diaries 01' (album Diaries) https://elinch.bandcamp.com 02.33.48 Elinch ‘Diaries 03' 02.43.04 Sherry Finzer & Karasvana ‘Sacred Spiral' (album Centered) www.heartdancerecords.com 02.47.52 Gian Berselli and Jérémy Marais ‘Arcobaleno All'Interno' (album Creative Stillness) www.astralwolf.com 02.53.35 Carl Weingarten ‘For Rosa' (EP Stop Me Try) http://www.carlweingarten.com 
Edit***

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Summer heat has arrived in Kodiak! While locals are trying to stay cool in the heat, things are glowing in the mesosphere. Noctilucent clouds, the highest altitude clouds we have, can be seen in upper latitudes in summer. Listen here to learn more about these magic clouds.

Une chronique de Laurent Lafourcade

Merriam-Webster's Word of the Day for October 31, 2020 is: wraith • RAYTH • noun 1 a : the exact likeness of a living person seen usually just before death as an apparition b : ghost, specter 2 : an insubstantial form or semblance : shadow 3 : a barely visible gaseous or vaporous column Examples: "Walberswick is populated in part by refugees and retirees of London's artistic circles.... Just keep in mind that it's regarded as one of the most haunted villages in Suffolk. George Orwell reportedly saw a wraith in the church cemetery while visiting." — James Lileks, The Star Tribune (Minneapolis, Minnesota), 14 May 2020 "Noctilucent clouds have appeared after past launches of the Space Shuttle, and—more recently—after one of Elon Musk's Falcon 9 rockets was dispatched to space. And these clouds are becoming more common. A century ago, you may have had to wait years to spot one of these ghostly wraiths; now you are likely to see several over a single summer." — Nigel Henbest, The Independent (UK), 3 June 2020 Did you know? If you see your own double, you're in trouble, at least if you believe old superstitions. The belief that a ghostly twin's appearance portends death is one common to many cultures. In German folklore, such an apparition is called a Doppelgänger (literally, "double goer"); in Scottish lore, they are wraiths. The exact origin of the word wraith is misty, however, and etymologists can only trace it back to the early 16th century—in particular to a 1513 translation of Virgil's Aeneid by Gavin Douglas (the Scotsman used wraith to name apparitions of both the dead and the living). In current English, wraith has taken on additional, less spooky, meanings; it now often suggests a shadowy—but not necessarily scary—lack of substance.

Noctilucent clouds are a unique atmospheric phenomenon.

Chris and Shane describe a recent noctilucent cloud observation and talk about some solar system objects that will be observable during the next two weeks.

Chris and Shane share recent observations of the Sun, Mercury, and our Moon. Noctilucent cloud season is upon us, find out what this phenomena is and how to observe it.

See Climate Change! Noctilucent Clouds exist at more than 50 miles above the Earth's surface or about 4 times higher than the tops of the most intense tropical thunder storms. Climate change has caused these once very rare clouds to become a common occurrence.

See Climate Change! Noctilucent Clouds exist at more than 50 miles above the Earth's surface or about 4 times higher than the tops of the most intense tropical thunder storms. Climate change has caused these once very rare clouds to become a common occurrence.

Please welcome our first 2020 TechnoColor's guest mix by D@vid. P. aka Miroir from Saint Naz Air, France Hope you enjoy this amazing hypnotic journey! 👽🚀 Follow the artist: https://soundcloud.com/user335198893vid This great mix features music from these amazing artists; KAS:ST, Svarog, Deepbass, A thousand details, Joachim Spieth, Refracted, Function, Luiggi Tozzi, Sandwell district, Reggy V, Cavul M, Surt, Viels, Pvrv. , Akov, and Relic Radiation. __________________________________________________________ Tracklist : (track name / artist / release) 1 - Immolare(function version) - Sandwell District (Feed forward) 2 - Raiders (original mix) - Luigi Tozzi (Wastelands) 3 - Noctilucent (original mix) - Joachim Spieth, Reggy V - (Noctilucent) 4 - Fallers (original mix) - Deepbass (Night without stars) 5 - Ayvarkana.(original mix) - KAS:ST (Dysphoria I Euphoria Chapter I) 6 - Mavka(original mix) - Svarog (Formation2) 7 - Dark Matter(original mix) - Akob (Gravitational waves) 8 - Bliss(original mix) - Cavul m (Norland) 9 - Egoist(original mix) - Function (Ember) 10 - Immersione (original mix) - Viels (Varios 1) 11 - Nure - Surt (Flumen) 12 - Sequence1 (original mix) - Deepbass (Compilation#3) 13 - arenex(original mix) - A thousand details (Aneroid tales) 14 - Fantasmal accioʼ n asistencia (original mix) - Pvrv. (Neo futurismo) 15 - Convex glass (original mix) - Relic Radiation (Forking Path) 16 - Respect the rules(original mix) - Cavul m (Isolation/desolation) 17 - Particle zoo original mix - Refracted (Unknown landscapes vol 6) If you liked this mix and would like to support the artist, please feel free to like it and share it

Noctilucent clouds are a unique atmospheric phenomenon that can help scientists understand the flow of energy in the atmosphere.

For five days, the balloon floated through the stratosphere giving scientists their first 3-D look at these electric blue clouds.

Tracklist: 01.Etherwood - Souvenirs (feat. Zara Kershaw) 02.DRS - The View (feat. LSB & Tyler Daley) 03.Artificial Intelligence - Fallen (feat. Dawn Wall) 04.Exfeed & Project 71 - Raindrops 05.Elka, Noctilucent, Triatik & Nori - Tell Me 06.Diego Torres - Awake 07.Xorgen - Memories 08.Nelver & Krot - Greenland 09.DJ Marky - Silly 10.Technimatic - Secret Smile (feat. Lucy Kitchen) 11.Silence Groove - Only You 12.Michael E.T. - Running Wild 13.Eugenics Eight - Wings Of Destiny 14.Jrumhand & Scott Allen - Love So True 15.Ant To Be - Take Your GMT 16.Madface - Go on 17.Nelver - The Flight 18.Frankee - Deep Down (feat. Caan) 19.Hybrid Minds - Lifted (feat. Matt Banks) 20.V4Ns - Epilogue

Tracklist: 1.Implex and Julia Marks - 10000 Years 2.Elka, Noctilucent, Triatik, Nori - Tell Me 3.Melinkivsphenz - Hold Me 4.Nelver - Mountain Height 5.Mako, Villem & McLeod - Inner Revolution 6.Artificial Intelligence - What You Had (Lenzman Remix) 7.Netsky - Lets Leave Tomorrow (feat. Bev Lee Harli) 8.Unknown Artist - Mango 9.Frankee - Deep Down (feat. Caan) 10.Changer Ltd - Easy Vision 11.Maduk Feat. Champion - Love Like This 12.soul Method - California Sunset 13.Krakota - Ghosts 14.Phat Playaz - Human 15.Mage - Do You Love Me 16.V4Ns - Good Morning

TRACKLIST Tru Love feat, Al Rolfe - Aze Need to feel Loved (Keeno Remix) feat. Delline Bass - Reflekt Paradise - Chris Su Saving Grace - Tokyo Prose Open Your Soul - Crytical Dub Unfinished Business - Technimatic No One Knows - Electrosoul System I Need You - Nelver Tell Me feat. Nori - Elka & Noctilucent & Triatik Let It Go - Mystik Embracing Solitude - JCB Good Luv - Murdock, Submatik & Jenna G The Path - Jubei As always huge respect to all artists included for their hard work producing top quality tunes

1.I Only Have Eyes for You Oneohtrix Point Never Comissions Vol.1 20142.Noctilucent Eco Virtual Atmospheres 第2 20143.L O B B Y Napolian Incursio 20144.Ikebana I Motion Sickness of Time Travel Alpha Piscium 20145.The Palace of Love 2 Pulse Emitter Planetary Scale Syhth Hypnosis 20146.Moss Agate (Under Ground of Older Somewhere) Mark McGuire Moss Agate 20147.Condor Panabrite Tracer 20148.Lakes in Moon Lace Bows Bows of Summer 20139.Digital Escapes Golden Living Room New Nostalgia 201410.Implanted Memories Infinity Frequencies Computer Afterlife 201411.Ikebana Garden Monster Rally Sunflower EP 2014podcast!

Why does time seem to go by faster as we get older? What do IQ tests really measure? How do probiotic yoghurts work? We get the answers to all these on this week's show, as well as finding out why hair goes lighter in the sun and how 3D televisions work. Plus, is there such a thing as a 'good' virus? Like this podcast? Please help us by supporting the Naked Scientists

Why does time seem to go by faster as we get older? What do IQ tests really measure? How do probiotic yoghurts work? We get the answers to all these on this week's show, as well as finding out why hair goes lighter in the sun and how 3D televisions work. Plus, is there such a thing as a 'good' virus? Like this podcast? Please help us by supporting the Naked Scientists