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Universe Today Podcast

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Nov 21, 2024 β€’ 42min

[Interview] How Red Dwarf Stars Could Host Habitable Planets After All

We're still waiting for the results from JWST about the atmospheres on the TRAPPIST-1 planets. But is there a way for red dwarf planets to keep atmospheres on planets. Latest research seems to show that it might be possible. 🟣 Guest: Dr. Joshua Krissansen-Totton https://depts.washington.edu/astrobio/wordpress/profile/joshua-krissansen-totton/ πŸ“œ The erosion of large primary atmospheres typically leaves behind substantial secondary atmospheres on temperate rocky planets https://www.nature.com/articles/s41467-024-52642-6 πŸ¦„ Support us on Patreon: https://patreon.com/universetoday 00:00 Intro 02:09 Problems with M dwarfs 11:22 Holding on to atmospheres 19:46 JWST observations 24:10 Habitable worlds observatory 32:40 Trappist-1 results wen? 40:22 More interviews πŸ“Ί VIDEO VERSION #TODO_LINK πŸ“° GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 20, 2024 β€’ 24min

[Overtime Q&A] Conspiracy Theories in School, Preserving History, JWST Restrictions

Should they teach conspiracy theories in schools? How can we preserve history? How restricted is JWST because of its sunshield? Answering all these questions and more in this week's Overtime Q&A. πŸ¦„ Watch our videos with no ads πŸ‘‰ Get additional audio episodes of Overtime https://patreon.com/universetoday 00:00 Start 00:26 Should conspiracy theories be taught in school? 08:13 How much does the sunshield block JWST? 10:19 How can we protect history? 14:27 Will we find ancient civilizations on other planets? 18:03 Why not use the proper name for the Sun and Moon? 18:55 Is there a Moon timezone? 19:56 Is the edge of the Observable Universe set by aliens? πŸ“Ί VIDEO VERSION https://youtu.be/vPzWeZydMbE πŸ“° GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 19, 2024 β€’ 57min

[Interview] Can Anybody Stop SpaceX Now? (with Eric Berger)

Will SpaceX be able to deliver Starship in time for Artemis? Will Elon and Donald cancel SLS and replace it with Falcon Heavy? Is there any chance for real competition with SpaceX? How serious is the space race with China? Finding out the answers in this interview. 🟣 Guest: Eric Berger https://arstechnica.com/author/ericberger/ πŸ¦„ UT Extra: Future of Space Journalism https://patreon.com/universetoday πŸ“– Eric Berger's New Book "Reentry: SpaceX, Elon Musk, and the Reusable Rockets that Launched a Second Space Age" https://www.goodreads.com/book/show/205309521-reentry 00:00 Intro 01:12 Reentry and the rise of SpaceX 10:24 What happens to SLS 20:17 The state of Starship 30:45 Blue Origin and other competition 35:29 Space race with China 42:11 Questions from the Patreon Community 53:22 Current obsessions 55:11 Final thoughts πŸ“Ί VIDEO VERSION https://youtu.be/_igVSf6tyJs πŸ“° GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 18, 2024 β€’ 45min

[Interview] How The Moon's Bumpy Gravitational Field Can Help Launch Things From Its Surface

Moon has a non-uniform bumpy gravitational field. We can use these anomalies to launch stuff off the surface of the Moon with electromagnetic launchers. How exactly can we do it? Finding out in this interview. 🟣 Guest: Dr. Pekka Janhunen https://www.mpe.mpg.de/person/18090/2169 πŸ“œ Launching mass from the Moon helped by lunar gravity anomalies https://arxiv.org/abs/2410.09616 πŸ“œ Terraforming the dwarf planet: Interconnected and growable Ceres megasatellite world https://arxiv.org/pdf/2011.07487 πŸ¦„ Support us on Patreon: https://patreon.com/universetoday More interviews: 🌞 Solar Gravitational Lens with Slava Turushev: https://youtube.com/live/lqzJewjZUkk?feature=share πŸš€ Realistic Interstellar Travel with Andrew Higgins https://youtu.be/SkGRVvA23qI 🏑 Asteroid Habitats with Adam Frank https://youtu.be/Z-hH3-z56cg 00:00 Intro 02:51 Electrostatic sail updates 07:15 Launching stuff from the Moon 14:46 Finding trajectories 18:44 Practical applications 30:56 Mining Ceres 38:32 Future of humanity 42:53 More interviews πŸ“Ί VIDEO VERSION https://youtu.be/VP4fn0_cb24 πŸ“° GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 15, 2024 β€’ 20min

[Space Bites] Zone of Avoidance Defied // Big Meteor Storm's Coming // Ozone Hole Shrinks

Some good environmental news, the Roman Space Telescope gets its mirror, astronomers defy the zone of avoidance, and moving stars halfway across the Milky Way πŸ“Έ New Zealand Astrophotography Competition: https://www.universetoday.com/169293/our-breathtaking-cosmos-new-zealand-astrophotography-winners-announced/ πŸ¦„ Support us on Patreon: https://patreon.com/universetoday 00:00 Intro 00:14 Good news! https://www.universetoday.com/169251/good-news-the-ozone-layer-hole-is-continuing-to-shrink/ 02:41 Nancy Grace Roman gets its mirror https://www.nasa.gov/missions/roman-space-telescope/telescope-for-nasas-roman-mission-complete-delivered-to-goddard 05:01 Leonides https://www.universetoday.com/169124/is-an-off-year-leonid-outburst-in-the-cards-for-november/ 06:27 Trash compactor https://www.universetoday.com/169229/a-trash-compactor-is-going-to-the-space-station/ 07:43 Astronomers defy the Zone of Avoidance https://www.universetoday.com/169287/astronomers-defy-the-zone-of-avoidance-to-find-hundreds-of-new-galaxies/ 10:07 Finding black holes by their light echoes https://www.universetoday.com/169227/using-light-echoes-to-find-black-holes/ 11:33 Vote results 12:11 Life under ice on Mars https://www.universetoday.com/169296/how-life-could-live-under-the-ice-on-mars/ 13:46 Stellar engine https://www.universetoday.com/169255/a-spider-stellar-engine-could-move-binary-stars-halfway-across-a-galaxy/ 16:08 Habitable worlds observatory 17:05 More space news stories 17:49 New Zealand astrophotography competition πŸ“Ί VIDEO VERSION https://youtu.be/d3eNRzrJRqY πŸ“° GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 14, 2024 β€’ 46min

[Interview] Are Membrane Telescopes The Future of Space-Based Astronomy?

πŸ¦„ Support us on Patreon: https://patreon.com/universetoday 🟣 Guest: Dr. Sebastian Rabien https://www.mpe.mpg.de/person/18090/2169 πŸ“œ Membrane Space Telescope: Active Surface Control with Radiative Adaptive Optics https://arxiv.org/pdf/2410.07741 00:00 Intro 02:27 Adaptive optics in space 05:17 Membrane-based telescopes 22:48 Taking membrane telescopes to space 32:54 A practical next step 34:02 Questions from patrons 36:54 Working with ELT 44:30 More interviews πŸ“Ί VIDEO VERSION https://youtu.be/36t-UGXfllk πŸ“° GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 12, 2024 β€’ 43min

[Q&A] Spin Limit of Earth, True Colours of Exoplanets, Danger from Space Samples

πŸ¦„ Support us on Patreon: https://patreon.com/universetoday How fast can the Earth spin before it starts tearing itself apart? Should we be worried about samples from Mars contaminating Earth? Why don't space agencies use standardized platforms for their missions to save costs? 00:00 Start 01:05 How fast can the Earth spin not to tear apart? 05:19 Is bringing samples from space objects dangerous? 09:56 Can we make space probes standard? 14:34 Why is it so hard to go to other star systems? 19:01 What happens to time dilation in an Alcubierre drive? 21:32 Can our Oort cloud exchange material with Alpha Cen? 24:05 How would true colour images of exoplanets look like? 26:19 Are goofy thumbnails the zeitgeist of science channels? 29:41 Electromagnetic mass drivers on the Moon? 33:31 How long can satellites stay in orbit? 36:09 Why we don't expect life around M dwarf stars? πŸ“Ί VIDEO VERSION https://youtu.be/uibgztL2wEA πŸ“° GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 8, 2024 β€’ 19min

[Space Bites] Satellite Survives Orbital Hit // Starship Flight 6 Date // Webb Finds a Steam World

Another Starship flight is right around the corner, how to make space telescopes insanely thin, a black hole feeding faster than it should, and plans to build your own radio telescope πŸ¦„ Support us on Patreon: https://patreon.com/universetoday πŸ“š Suggest books in the book club: https://www.goodreads.com/group/show/1198440-universe-today-book-club 00:00 Intro 00:13 Starship IFT-6 Launch Date 03:27 Satellite surviving a collision 05:12 Ultra-thin space telescopes 07:42 Aftermath of a neutron star collision 09:48 Steam world 11:25 Vote results 11:58 Black hole that's eating too fast 13:33 The end for Skylon? 15:39 Build your own telescope 17:16 Guide to Space 17:59 Questions for the interviews πŸ“Ί VIDEO VERSION https://youtu.be/yNGAB7i8prI πŸ“° EMAIL NEWSLETTER Read by 60,000 people every Friday. Written by Fraser. No ads. Subscribe. It's FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 🀳 OTHER SOCIAL MEDIA Twitter: https://twitter.com/fcain Twitter: https://twitter.com/universetoday Facebook: https://facebook.com/universetoday Instagram: https://instagram.com/universetoday πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 5, 2024 β€’ 41min

[Q&A] How Loud Was The Big Bang? Does Planet Spin Matter? Can Black Holes Revert to Stars?

πŸ¦„ Support us on Patreon: https://patreon.com/universetoday πŸ“š Suggest books in the book club: https://www.goodreads.com/group/show/1198440-universe-today-book-club 00:00 Start 00:27 [Alaris] How loud was the Big Bang? 04:06 [Ardena] Can black holes become neutron stars again? 07:35 [Asuria] Why send missions to Europa, not Enceladus? 12:17 [Belote] Will humans feel weird on a planet spinning opposite to Earth? 13:33 [Belsa] Did we see globular clusters gain or lose stars? 15:40 [Cartego] What would a Moon or Mars cars look like? 19:03 [Chulak] Can Ganymede and Titan be considered planets? 21:51 [Dakara] How loud would the Sun be? 22:40 [Edora] Can we use lasers for solar sails? 27:30 [Goronak] How does mass cross the event horizon? 30:28 [Hadante] How do we predict the lifetime of stars? 33:45 [Hebridan] Could we send mass to space to change our orbit and stop global warming? πŸ“Ί VIDEO VERSION https://youtu.be/eHKXwlDhWxA πŸ“° EMAIL NEWSLETTER Read by 60,000 people every Friday. Written by Fraser. No ads. Subscribe. It's FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 🀳 OTHER SOCIAL MEDIA Twitter: https://twitter.com/fcain Twitter: https://twitter.com/universetoday Facebook: https://facebook.com/universetoday Instagram: https://instagram.com/universetoday πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast
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Nov 1, 2024 β€’ 19min

[Space Bites] Is Sgr A* Image Wrong? // New Voyager-1 Problems // Another Sub-Surface Ocean

Is this Event Horizon image accurate? Webb scans Vega for planets, another problem with Voyager 1, and a supernova space dandelion. πŸ¦„ Support us on Patreon: https://patreon.com/universetoday πŸ“š Suggest books in the book club: https://www.goodreads.com/group/show/1198440-universe-today-book-club 00:00 Intro 00:13 Retake for the Sgr A image? https://www.universetoday.com/169025/the-milky-ways-supermassive-black-hole-photo-might-need-a-retake/ 02:32 Scanning Vega for planets https://www.universetoday.com/169041/webb-scans-vega-for-planets/ 04:20 "Alien signal" decoded https://www.universetoday.com/169047/remember-that-alien-signal-sent-by-the-exomars-orbiter-last-year-its-just-been-decoded/ 06:00 NASA's solar sail damaged https://futurism.com/the-byte/nasa-solar-sail-spacecraft-damaged-spinning 07:47 New problems for Voyager-1 https://blogs.nasa.gov/voyager/2024/10/28/after-pause-nasas-voyager-1-communicating-with-mission-team/ 09:48 Vote results 10:28 Sub-surface ocean on Miranda https://www.universetoday.com/169058/theres-another-ocean-moon-candidate-uranus-tiny-moon-miranda/ 12:23 Titan's icy crust https://www.universetoday.com/169048/titan-may-have-a-methane-crust-10-km-thick/ 14:08 Space Dandelion https://www.universetoday.com/169031/this-ancient-supernova-remnant-looks-like-a-stellar-dandelion/ 16:04 The Guide to Space 16:45 Remote telescope testing πŸ“Ί VIDEO VERSION https://youtu.be/QbleoKUuwAg πŸ“° EMAIL NEWSLETTER Read by 60,000 people every Friday. Written by Fraser. No ads. Subscribe. It's FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 🀳 OTHER SOCIAL MEDIA Twitter: https://twitter.com/fcain Twitter: https://twitter.com/universetoday Facebook: https://facebook.com/universetoday Instagram: https://instagram.com/universetoday πŸ“© CONTACT FRASER frasercain@gmail.com βš–οΈ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast

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