Podcasts about extragalactic astronomy

Dr Jacinta Delhaize wrote an article recently on The Conversation website about a South African telescope which has discovered a giant new galaxy, which is 32 times bigger than earth!The MeerKAT radio telescope is situated in the Karoo and is made up of 64 radio dishes and is operated and managed by the South African Radio Astronomy Observer.Dr Jacinta Delhaize is an astronomer (or astrophysicist) who’s expertise is in galaxy evolution and radio astronomy. She is also lecturer and Academic Staff member at the University of Cape Town. She currently teaches a 3rd year undergraduate course called “Galactic and Extragalactic Astronomy.”See omnystudio.com/listener for privacy information.

Physicists studying a distant galaxy using a telescopic technique called gravitational lensing, or telescopic magnification, have discovered over 40 previously unknown stars. The discovery, published in Nature Astronomy, shows how these stars were behaving eight billion years ago, giving a glimpse into the population of stars at 'cosmic noon' - the Middle Ages of the Universe. The research was led by the Centre for Frontier Science at Chiba University, in Japan, and involved over 45 international partners. In the UK this was led by Durham University's Centre for Extragalactic Astronomy and involved the Jodrell Bank Centre for Astrophysics, Manchester University. New telescopic magnification trick to discover over 40 new stars The international team used observations from the James Webb Space Telescope (JWST) and gravitational lensing to study a galaxy known as the Dragon Arc, located behind a massive cluster of galaxies called Abell 370. In gravitational lensing a foreground galaxy cluster bends the light from a more distant object and magnifies it, allowing scientists to study the distant object (here the Dragon Arc galaxy). Due to its gravitational lensing effect, Abell 370 stretches the Dragon Arc's signature spiral into an elongated shape - like a hall of mirrors of cosmic proportions. Using this technique, and high-resolution images from the JWST, taken across a full year, the team was able to identify 44 previously unknown stars in the Dragon Arc. They observed that the brightness of these individual stars changed over the course of the study due to variations in the gravitational lensing landscape. The findings show what this galaxy is made of in a way not previously achieved. They also tell us more about dark matter - a mysterious substance that binds together galaxies, creating the environment for stars, planets and life to exist. Dr David Lagattuta from the Centre for Extragalactic Astronomy at Durham University said: "When the team made this discovery, we knew that, given the size of the dots seen in the JWST images, the most logical explanation was that these were individual stars, seen for the first time, which is a hugely exciting discovery. "We know these are stars that have not been seen before by comparing them to previous image of the Dragon Arc which do not show these bright dots. "Other possibilities such as these findings being a cluster of stars or exploding supernovae simply did not fit the data. "It would be a huge coincidence to find so many supernovae all in the same galaxy and all exploding at the same time. Supernovae also tend to suppress star formation, but spectroscopy tells us the Dragon Arc is still actively forming stars. "We also reasoned that these objects had to be individual stars, rather than star clusters, since the size of what we're seeing (after accounting for the extreme lensing magnification) is much too small to fit in the tens of hundreds of bright stars in a star cluster at once. Many of the stars identified through this study are 'red supergiants', a type of star that has typically been very difficult to identify outside of the Milky Way. This is because they are covered in a layer of cosmic 'dust' making them almost invisible to telescopes. The JWST enabled the research team to peer through this dust more easily, revealing the hidden stars inside. Professor Mathilde Jauzac from the Centre for Extragalactic Astronomy and the Institute for Computational Cosmology at Durham University said: "This is the first time, that we are aware of, that so many stars have been discovered in one cluster. This finding enables us to see what the galaxy is made of in ways not possible before. "This provides a fascinating and unique view into the behaviour of stars at the critical 'cosmic noon', the Middle Ages of the Universe. "We know that in the early stages of the Universe there is lots of gas and early 'protostars' and then by nine to 10 billion years ago star formation peaks and everythin...

They are exploring the dark universe. That's the mission of the Euclid space telescope. European scientists hope it'll solve some of the deepest mysteries of the cosmos. But for what purpose? And can Europe develop a space industry of its own? Join host Cyril Vanier Guests: Pierre Ferruit, Euclid Mission Manager at the European Space Agency.  Christopher Conselice, Professor of Extragalactic Astronomy at The University of Manchester Paul Taylor, Senior Fellow at the Friends of Europe think-tank.

Self Esteem is creating pop with purpose, tackling the patriarchy, sexual abuse and toxic relationships to a fun danceable beat. She is nominated for this year's Mercury Prize for her second album Prioritise Pleasure and joins Emma in the studio. The cost of living crisis has been a central point of contention between the two candidates vying to be our next Prime Minister. Emma is joined by Baroness Minouche Shafik, Director of the London School of Economics. Previously deputy governor at the Bank of England - touted by many as the favourite to have replaced Mark Carney as the Governor of the Bank when he stood down in 2019, instead Andrew Bailey took the role and recently declared a recession is likely. Before 1900, a woman who wanted to study the stars had to have a father, brother, or husband to provide entry. Now in a new book ‘The Sky Is for Everyone', thirty seven leading women working in the field of astronomy, who have broken down barriers tell their personal stories of scientific success. Two of the women featured in the book are Cathie Clarke, Professor of Theoretical Astrophysics at the Institute of Astronomy, Cambridge and Professor Carole Mundell, the Hiroko Sherwin Chair in Extragalactic Astronomy, Head of Astrophysics at the University of Bath, and President of the UK Science Council. It's been two weeks since the Lionesses brought home the Euro 2022 trophy. Last week the England Captain Leah Williamson spoke on this programme about the importance of ensuring girls have the chance to play football. Emma is joined by Richard, not his real name, whose daughter played for the Crystal Palace junior team but has recently heard her team has been cut. Presenter: Emma Barnett Producer: Emma Pearce

Astronomers recently announced that, with the help of the ESO VLT, they had observed a new type of small — yet powerful — stellar explosion: a Micronova. The study, which was published in "Nature" on April 20, was led by Dr. Simone Scaringi, astronomer at Durham University in the UK. We are pleased to welcome Simone to tonight's WSH to tell us more about this exciting discovery. Simone earned his undergraduate BSc in Mathematics with Astronomy at the University of Southampton, after which he obtained both a M.Phil and PhD also from Southampton in the Astronomy group (2010). He spent the next two years at Radboud University Nijmegen, Netherlands, as a postdoctoral fellow before moving to KU Leuven, Belgium, in 2012 with a FWO Pegasus Marie Curie fellowship. In 2015 Simone joined the Max-Planck-Institute for Extraterrestrial Physics in Garching, Germany where he held a Humboldt fellowship. In 2017 Simone was appointed lecturer at the University of Canterbury in New Zealand, and in 2018 he moved to the United States as an Assistant Professor at Texas Tech University in Lubbock, USA. Since 2020 he has been an Assistant Professor in the Centre for Extragalactic Astronomy at Durham University. Simone's primary research interests are accretion physics across the scales, compact objects, time-series analysis, machine learning, and Galactic photometric surveys. You can learn more about Simone and his research by visiting his faculty website at Durham University as well as his personal website. You can also follow him on Facebook as well as Twitter, although he admits to rarely using Twitter! IMAGE CREDIT: This artist's impression shows a two-star system where micronovae may occur. The blue disc swirling around the bright white dwarf in the centre of the image is made up of material, mostly hydrogen, stolen from its companion star. Towards the centre of the disc, the white dwarf uses its strong magnetic fields to funnel the hydrogen towards its poles. As the material falls on the hot surface of the star, it triggers a micronova explosion, contained by the magnetic fields at one of the white dwarf's poles. Credit: ESO/M. Kornmesser, L. Calçada **************************************** The Weekly Space Hangout is a production of CosmoQuest. Want to support CosmoQuest? Here are some specific ways you can help: Subscribe FREE to our YouTube channel at https://www.youtube.com/c/cosmoquest Subscribe to our podcasts Astronomy Cast and Daily Space where ever you get your podcasts! Watch our streams over on Twitch at https://www.twitch.tv/cosmoquestx – follow and subscribe! Become a Patreon of CosmoQuest https://www.patreon.com/cosmoquestx Become a Patreon of Astronomy Cast https://www.patreon.com/astronomycast Buy stuff from our Redbubble https://www.redbubble.com/people/cosmoquestx Join our Discord server for CosmoQuest - https://discord.gg/X8rw4vv Join the Weekly Space Hangout Crew! - http://www.wshcrew.space/ Don't forget to like and subscribe! Plus we love being shared out to new people, so tweet, comment, review us... all the free things you can do to help bring science into people's lives.

https://youtu.be/eqT3j2LIpoY Host: Fraser Cain ( @fcain )Special Guest: Astronomers recently announced that, with the help of the ESO VLT, they had observed a new type of small — yet powerful — stellar explosion: a Micronova. The study, which was published in "Nature" on April 20 [https://www.eso.org/public/news/eso22...], was led by Dr. Simone Scaringi, astronomer at Durham University in the UK. We are pleased to welcome Simone to tonight's WSH to tell us more about this exciting discovery.   Simone earned his undergraduate BSc in Mathematics with Astronomy at the University of Southampton, after which he obtained both a M.Phil and PhD also from Southampton in the Astronomy group (2010). He spent the next two years at Radboud University Nijmegen, Netherlands, as a postdoctoral fellow before moving to KU Leuven, Belgium, in 2012 with a FWO Pegasus Marie Curie fellowship. In 2015 Simone joined the Max-Planck-Institute for Extraterrestrial Physics in Garching, Germany where he held a Humboldt fellowship.   In 2017 Simone was appointed lecturer at the University of Canterbury in New Zealand, and in 2018 he moved to the United States as an Assistant Professor at Texas Tech University in Lubbock, USA. Since 2020 he has been an Assistant Professor in the Centre for Extragalactic Astronomy at Durham University.   Simone's primary research interests are accretion physics across the scales, compact objects, time-series analysis, machine learning, and Galactic photometric surveys.   You can learn more about Simone and his research by visiting his faculty website at Durham University [https://www.durham.ac.uk/staff/simone...] as well as his personal website [http://www.astro.dur.ac.uk/~simo/].   You can also follow him on Facebook [https://www.facebook.com/frozensimo] as well as Twitter [https://twitter.com/AstroSimo], although he admits to rarely using Twitter! Regular Guests: Dr. Morgan Rehnberg ( http://www.morganrehnberg.com/ & @MorganRehnberg ) Dr. Leah Jenks ( https://leahjenks.com/ / @leahgjenks ) C.C. Petersen ( http://thespacewriter.com/wp/ & @AstroUniverse & @SpaceWriter ) This week's stories: - A new Hubble competitor from China. - Perseverance lost contact with Ingenuity! - What will the EHT be announcing? - What you can do with lunar soil. - CO2 frost avalanches on Mars.   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.

Christopher Conselice is the Professor of Extragalactic Astronomy at the University of Manchester and Jodrell Bank. Conselice has been one of the pioneers in using the fact that the speed of light is constant to determine how galaxy evolution has occurred. He led a team in 2016 which showed that the number of galaxies in the universe was 2 trillion, 10 times higher than previous estimates of 100-200 billion. He also developed a new methodology for calculating the number of possible communicating intelligent extraterrestrial civilizations there could be in our galaxy.In this episode, Christopher talks about the origins of the universe from the big bang to the recent discovery of the expansion of space speeding up. He covers what we know about black holes and the Nobel Prize discovery of dark energy. They discuss dark matter and the complexity and inner workings of the world's most complicated telescopes. Nik throws some difficult questions his way about intelligent design, the existence of alien life, and religion.Watch on Youtube: https://youtu.be/q4U-p7qAX3ISubscribe Now | New Episode Every Wednesday: https://www.cvlture.tv/cvlture-christopher-conselice-episode-034/Welcome to CVLTURE - The weekly show that brings you inspirational, shocking and sometimes hilarious stories from celebrities, innovators and unique characters from around the globe. Be a part of the journey with rapper/entrepreneur Nik Nagarkar as we pull back the curtain to explore the world as we know it, challenge our thoughts and shine a light on how culture shapes who we are and how we move through life. Created for the CVLTURE by the CVLTURE…Follow CVLTUREhttps://www.cvlture.tv/Instagram: https://www.instagram.com/cvlture.tv/ Facebook: https://www.facebook.com/CVLTURE.TV Twitter: https://twitter.com/CVLTURETV Follow Nik "Nika D" Nagarkar Instagram: https://www.instagram.com/itsnikad Facebook: https://www.facebook.com/virussyndicate Twitter: https://www.twitter.com/Virus_syndicate Follow ChrisWebsite: https://www.research.manchester.ac.uk/portal/conselice.htmlTwitter: https://twitter.com/conseliceMade in Manchester. Produced by EY3 Media

For the first time ever a spacecraft carrying only civilians has launched into space. The two men and two women blasted-off from Florida' s Kennedy Space Centre on board Elon Musk's SpaceX Crew Dragon capsule on Wednesday night. They'll spend three days in orbit before returning to Earth, marking another big step towards developing the space tourism industry. Here's our North America Correspondent Jon Brain. We were joined by Christopher Conselice. He's a Professor of Extragalactic Astronomy at University of Manchester. #Spacex #SpaceTravel #BlueOrigin #VirginGalactic

Pandemic Unmasked is a short series of podcasts by the British Embassy The Hague reflecting on the Covid-19 pandemic that started almost a year ago. This episode host Andy Clark talks to the Dutch virologist Professor Marion Koopmans, Head of the Department of Viroscience at the Rotterdam Erasmus MC and Professor Carole Mundell, International Science Envoy at the  Foreign, Commonwealth and Development Office. They discuss lessons learned and what would be needed to avoid, or at least be better prepared for, another pandemic. Would it be possible to develop early warning systems? Why is genomic sequencing to track viruses essential? Professor Koopmans and Professor Mundell also reflect on the role of fake news during this crisis.  Professor Carole Mundell was appointed Chief Scientific Adviser (CSA) at the Foreign and Commonwealth Office in October 2018 and took up the role of International Science Envoy in January 2021.  She is Professor of Extragalactic Astronomy, Head of Astrophysics at the University of Bath and a Fellow of the Institute of Physics. A world-leading scientist, she is a frequent guest speaker at international conferences. She sits on a number of strategic advisory panels for UK and international groups, is a committed communicator of science, and is an advocate for diversity in science. Professor Marion Koopmans, DVM PhD focuses on global population level impact of rapidly spreading zoonotic virus infections, with special emphasis on food-borne transmission. She is coordinator of the VEO project working towards prediction, detection and tracking of when and where risk of outbreaks is increasing (https://www.veo-europe.eu). She is the director of the WHO collaborating centre for emerging infectious diseases at the Erasmus Medical Centre, and Scientific Director “Emerging infectious diseases” of the Netherlands Centre for One Health (www.ncoh.nl).  

In Episode 4 of Rise Up, I spoke to Professor Carole Mundell about being a woman in STEM. Carole is a Professor of Extragalactic Astronomy and Chief Scientific Advisor to the Foreign and Commonwealth Office. We spoke about Carole's area of research, the importance of diversity in STEM, the best way to tackle sexism and how to navigate male dominated spaces. Enjoy!SocialRise Up Podcast: @riseupcastEve Alcock: @evealcock or @subathpresidentCarole Mundell: @CGMundellMusicScott Holmes - Inspirational OutlookScott Holmes - Hopeful Journey

News that the Marine Stewardship Council has reopened the North Sea cod fishery is met by some concern from marine biologist Professor Callum Roberts at the University of York. He says, this may be good news for cod and cod fishermen, but other marine species getting caught up in the drag nets may not be so capable of bouncing back. In a report out this week, the UK Government announced they are funding £246 million for major changes to the way electricity is produced and stored. New rules will make it easier for people to generate their own power with solar panels, and store it in batteries. But do we have the technology to make it work in a cost effective way? Steven Harris, a consultant in sustainable energy, thinks we'll soon have smart domestic appliances in our homes which better manage the fluctuating supply and demand for power. Expert in energy systems, at the University of Newcastle, Professor Phil Taylor, is researching the next generation of smart appliances and domestic storage batteries. A new study reports that 69% of Brits feel they have lost touch with nature. Dr. Rachel Bragg, at the Green Exercise Research Unit at the University of Essex and Care Farming UK, unpicks the anecdotal evidence from the facts and explores why a connection with the natural world is so important, why the connection is being broken and what we need to do about it. Professor of Extragalactic Astronomy at the University of Bath, Carole Mundell, explains how she and other astronomers captured the most complete picture yet of the most powerful type of explosion in the universe - Gamma Ray Bursts. These short-lived bursts of the most energetic form of light, shine hundreds of times brighter than a supernova and trillions of times brighter than our sun.

On February 22nd, NASA announced that 7 Earth-like planets orbit the star known as Trappist-1, within its habitable zone. SPEXcast sits down with RIT's Dr. Jennifer Connelly, a Doctor in Extragalactic Astronomy, to interpret this discovery

This month we talk science outreach in Wiltshire and have an audio report on the aurora from Iceland In the news, we have a supernova for amateur observers in a ‘nearby’ galaxy and Europe’s Herschel Observatory finding water plumes on dwarf planet Ceres. China’s Chang’e-3 moon mission finds itself in trouble (in more ways than one!) and the European Space Agency gives the green light to the exoplanet and star characterising PLATO mission. In the 5 Minute Concept, Paul poetically explains the history and science behind one of astronomy’s greatest ever discoveries, as he unwraps the concept of redshift. We interview Carole Mundell, Professor of Extragalactic Astronomy at Liverpool John Moore’s University, about the most violent explosions in the universe and promoting equality in science & astronomy. And in Q&A, we answer listeners' questions on the likelihood of fatalities from the M82 supernova and why the sun doesn't just float away.

Abstract: With the almost seamless transition from the Spitzer Space Telescope cryogenic mission (2003-2009) to the operation of the Herschel Space Observatory (2009-), it is no exaggeration to say that we have been enjoying a golden age of space infrared (IR)/submillimeter (Submm) astronomy in recent years. In this talk, I will report the results from the following three large extragalactic programs our group is currently conducting here at the Steward Observatory: (1) Herschel-Spitzer observations of galaxy clusters: gravitationally lensed galaxies and IR/Submm-bright cluster members (2) HST-Spitzer observations of 5.7

Dr. Marcia J. Rieke is Professor of Astronomy at the UA's Steward Observatory. She received her Ph.D. in 1976 from the Massachusetts Institute of Technology. Dr. Rieke is Regents Professor and her areas of research include: Extragalactic Astronomy and Cosmology, Instrumentation, Infrared Astronomy, and Galactic Astronomy. Her lecture was given October 11, 2010.

Marcia J. Rieke is Professor of Astronomy. Her research areas are: Extragalactic Astronomy and Cosmology, Infrared Astronomy, and Galactic Astronomy. Presented October 11, 2010.