The 365 Days of Astronomy

The 365 Days of Astronomy podcast launched in 2009 as part of the International Year of Astronomy. This community podcast continues to bring you day after day of content across the years. Everyday, a new voice, helping you see the universe we share in a new way. This show is managed by Avivah Yamani, edited by Richard Drumm. This podcast is funded through Patreon.com/CosmoQuestX and produced out of the Planetary Science Institute.

Guide To Space - Venus Could Have Supported Life For Billions Of Years 04/15/2025

Astronomy Cast Ep. 751: Vacuum Energy 04/14/2025

Travelers in the Night Eps. 783 & 784: Kacper's Centaur & Josh's Two PHAs 04/13/2025

NOIR Lab - DESI’s Year 3 Results 04/12/2025

NOIR Lab - DESI’s Year 3 Results Hosted by Rob Sparks. Description: The Dark Energy Spectroscopic Instrument (DESI) at Kitt Peak National Observatory has been collecting spectra of millions of galaxies to better understand dark energy, the mysterious force that is causing the expansion of the universe to accelerate. The DESI collaboration recently released results based on the first three years of data that indicate dark energy is not a constant force. In this podcast, NOIRLab’s Joan Najita discusses DESI and its groundbreaking results. Bios: Rob Sparks is in the Communications, Education and Engagement group at NSF’s NOIRLab in Tucson, Arizona. Dr. Joan Najita is an astronomer at NOIRLab, NSF’s research and development center for ground-based optical and infrared astronomy. She studies the origins of stars and planets and the life histories of the Milky Way and nearby galaxies. A long-time advocate for "highly multiplexed spectroscopy" (i.e., facilities like DESI), she also studies how discoveries are made in astronomy, and works to develop new tools and facilities that sustain discovery. Links: NORLab Press Release: DESI’s public webpage: - DESI’s YouTube channel, which features playlists of DESI talks from the March 2025 APS meeting and additional talks showcasing the BAO results: - Access the DESI data release through Astro Data Lab NOIRLab social media channels can be found at: We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: 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 for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at . /episode/index/show/astro365/id/36106545

EVSN - Space is Hard: IM2 Failure, Starship 8 Explosion, Mars Sample Return Delays & More 04/11/2025

Cheap Astronomy - Implausible Engineering Episode 4: Asteroids & Time Machines. Again. 04/10/2025

Awesome Astronomy - April Part 1 04/09/2025

Ask A Spaceman Ep. 245: What Made the Moon? 04/08/2025

Ask A Spaceman Ep. 245: What Made the Moon? Why is the moon so special? Why do we think a giant impact created it? Why didn’t the same thing happen to other planets? I discuss these questions and more in today’s Ask a Spaceman! Support the show: All episodes: Follow on X: Read a book: Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey D, Michael P, Naila, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, wahtwahtbird, Lisa R, Couzy, Kevin B, Michael B, Aileen G, Don T, Steven W, Brian O, Mark R, Alan B, Craig B, Mark F, Richard K, Stace J, Stephen J, Joe R, David P, Justin, Robert B, Sean M, Tracy F, Sarah K, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Bill E, Tim Z, Linda C, The Tired Jedi, Gary K, David W, dhr18, Lode D, Bob C, Red B, Stephen A, James R, Robert O, Lynn D, Allen E, Michael S, Reinaldo A, Sheryl, David W, Sue T, Chris, Michael S, Erlend A, James D, Larry D, Matt K, Charles, Karl W, Den K, George B, Tom B, Edward K, Catherine B, John M, Craig M, Scott K, Vivek D, and Barbara C! Hosted by Dr. Paul M. Sutter. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: 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 for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at . /episode/index/show/astro365/id/36046415

Astronomy Cast Ep. 750: Supernova Early Warning System 04/07/2025

Travelers in the Night Eps. 781 & 782: Comet C.2023 V5 (Leonard) & Probing The Cosmic Web 04/06/2025

Last Minute Astronomy - April 2025 Edition 04/05/2025

Last Minute Astronomy - April 2025 Edition I’m Rob Webb, your Last Minute Astronomer, bringing astronomy to normies and nerds, with little time to spare. April of 2025 brings us the annual Lyrid meteor shower, all the naked-eye planets, and plenty of lunar close encounters. We’ll start by talking about this month’s big events, then highlight the naked eye planets, and finish up with the lunar phases, so you can plan ahead better than me. April 22nd – LYRID METEOR SHOWER – Around 10-20 meteors per hour, the Lyrids are a minor shower, but a meteor shower indeed. And this year, the Moon will rise very early in the morning, meaning we have clear skies until that point, and even then, it’s not so bright. The shower is greatest on the 22nd, but you might see some on the 21st and 23rd as well. Just remember each meteor is a piece of debris left over from a comet, and we’re crashing into it at over 100,000 miles per hour, which crushes the atmosphere it hits, heating it up and causing the bright flash. There is no real best time to see these this year, but the later, the better. You never know when you’ll see something awesome. Some advice for watching: - Find a dark location and lie down in a reclining chair or something that insulates you from the ground. - Check the weather to see if the skies will be clear. - Adapt your eyes to the dark by staying away from light sources or using a red light if you need to look at a star chart or not trip over something. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: 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 for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at . /episode/index/show/astro365/id/36014510

EVSN - The Book of Mars, Star Formation, & More 04/04/2025

Actual Astronomy - The Observer’s Calendar for April 04/03/2025

Big Impact Astronomy - Ron Rosano Interview 04/02/2025

Big Impact Astronomy - Ron Rosano Interview Ron Rosano flew into space on a suborbital flight with Virgin Galactic on October 6, 2023, and has pursued a passion of space travel and astronomy outreach with schools in with the public since 1995. In awe of the starry sky since he was a child and inspired by the Apollo Moon landings, Ron has closely followed NASA and other space missions for as long as he can remember. He has parlayed this passion into extensive astronomy education outreach as an informal educator for more than 25 years, meeting with more than 220 schools in 15 countries. Ron is the creator and editor of the Suborbital Flight Journal, a complete record of all human suborbital flights. Since 2008, Ron has conducted more than 70 events as a NASA Solar System Ambassador, giving presentations on Mars rovers, the James Webb Space Telescope, the Apollo Moon landings, and more. Ron serves on the advisory council of the Astronomical Society of the Pacific, the board of advisors of the Human Space Program and the Board of Directors of the Nepal Youth Foundation. He works for a property management company and pursues interests in photography and jazz drumming. Mike Simmons is the founder of Astronomy for Equity ( ). Others on the team, including people around the world in astronomy and space exploration, authors and philosophers, designers and artists and more will be added as the website is developed. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: 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 for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at . /episode/index/show/astro365/id/35970715

Exoplanet Radio - TRAPPIST-1e: The Most Habitable Exoplanet 04/01/2025

Astronomy Cast Ep. 749: Dark Energy Changing Over Time 03/31/2025

Travelers in the Night Eps. 313E & 314E: Greg’s Destination & Whoppers 03/30/2025

UNAWE Space Scoop - Teenage Galaxy Found Hiding in a Cosmic Nursery 03/29/2025

EVSN - Star Formation Occurs in Competitive Environment 03/28/2025

H’Ad Astra Historia Ep. 203: Interstellar Part 1 03/27/2025

Guide to Space - Should We Fly to Another Star Soon? Or Wait for Better Technology to Come Along? 03/26/2025

Cheap Astronomy - Implausible Engineering, Ep. 3: We All Need Some Space 03/25/2025

Astronomy Cast Ep. 748: Fast Radio Bursts 03/24/2025

Ask A Spaceman - Ep. 240: Does the Great Filter Explain Why We’re Alone? 03/23/2025

Ask A Spaceman - Ep. 240: Does the Great Filter Explain Why We’re Alone? What is the Fermi Paradox? How rare is non-intelligent vs intelligent life? What are the challenges a species must overcome to colonize the galaxy? Where is everybody? I discuss these questions and more in today’s Ask a Spaceman! Support the show: All episodes: Follow on X: Read a book: Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey D, Robert B, Naila, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Mike G, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, wahtwahtbird, Lisa R, Couzy, Kevin B, Michael B, Aileen G, Mark R, Alan B, Craig B, Mark F, Richard K, Stace J, Stephen J, Joe R, David P, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Bill E, Tim Z, Linda C, The Tired Jedi, Gary K, David W, dhr18, Lode D, Bob C, Red B, Stephen A, James R, Robert O, Lynn D, Allen E, Michael S, Reinaldo A, Sheryl, David W, Sue T, Josephine K, Chris, Michael S, Erlend A, James D, Larry D, Matt K, Charles, Karl W, Den K, George B, Tom B, Edward K, and Catherine B! Hosted by Paul M. Sutter. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: 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 for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at . /episode/index/show/astro365/id/34915815

Travelers in the Night Eps. 311E & 312E: Comet Johnson & Space Salsa 03/23/2025

Cosmic Savannah Ep. 67: A Stroll to the Edge of the Universe 03/22/2025

EVSN - Overlooked Exoplanet Found by Citizen Scientists 03/21/2025

Actual Astronomy - A History of Planetary Motion 03/20/2025

Big Impact Astronomy - Olayinka Fagbemiro 03/19/2025

Big Impact Astronomy - Olayinka Fagbemiro Hosted by Mike Simmons. In this episode of #BigImpactAstronomy, Mike Simmons talks with Olayinka Fagbemiro about her inspiring work bringing STEM education to underserved communities in Nigeria. From IDP camps to classrooms, she’s empowering young minds—especially girls—to see a future in science. (From the Karman Project) Olayinka Fagbemiro has dedicated over 17 years to advancing space science and technology as the Chief Scientific Officer at the Nigerian Space Agency. She currently leads the Space Education Outreach Unit and is a vital member of the Planning, Policy, and Research team. Her leadership extends to her role as the Founder, CEO and National Coordinator, Astronomers Without Borders Nigeria, an NGO leveraging astronomy to foster STEM education and address educational inequalities across Nigeria. Olayinka is pursuing a PhD in Geoinformatics at the African University of Science and Technology, where her research focuses on the use of deep learning algorithms for urban development studies. Her expertise in spatial sciences is further augmented by her academic background, with a B.Sc. in Computer Science from the University of Ilorin and an M.Sc. in Technology Management from Obafemi Awolowo University. Mike Simmons is the founder of Astronomy for Equity ( ). Others on the team, including people around the world in astronomy and space exploration, authors and philosophers, designers and artists and more will be added as the website is developed. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: 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 for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at . /episode/index/show/astro365/id/35772625

Ask A Spaceman Ep. 244: What’s the Most Important Wavelength in All Astronomy? 03/18/2025

Ask A Spaceman Ep. 244: What’s the Most Important Wavelength in All Astronomy? What is 21-cm radiation? What (and who) produces it? What causes it, and what does it tell us about the universe? I discuss these questions and more in today’s Ask a Spaceman! Support the show: All episodes: Follow on X: Read a book: http://www.pmsutter/book Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey D, Michael P, Naila, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, wahtwahtbird, Lisa R, Couzy, Kevin B, Michael B, Aileen G, Toho Warrior, Steven W, Brian O, Mark R, Alan B, Craig B, Mark F, Richard K, Stace J, Stephen J, Joe R, David P, Robert B, Sean M, Tracy F, Sarah K, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Bill E, Tim Z, Linda C, The Tired Jedi, Gary K, David W, dhr18, Lode D, Bob C, Red B, Stephen A, James R, Robert O, Lynn D, Allen E, Michael S, Reinaldo A, Sheryl, David W, Sue T, Josephine K, Chris, Michael S, Erlend A, James D, Larry D, Matt K, Charles, Karl W, Den K, George B, Tom B, Edward K, Catherine B, John M, Craig M, and Scott K! Hosted by Dr. Paul M. Sutter. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: 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 for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at . /episode/index/show/astro365/id/35738475

The 365 Days of Astronomy

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