
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.
Latest episodes

May 21, 2025 • 17min
Awesome Astronomy - JWST & Square Kilometre Array with Chris North
https://www.youtube.com/watch?v=HeOVh7ck3D821 Paul Hill, Ralph Wilkins and Dr. Jenifer “Dr. Dust” Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. From Dec 28, 2021. Our chat with Dr. Chris North from our live show to ease the boredom of covid lockdowns. We ask Chris astronomy questions from our listeners: • Why are astronomers so sure that the recent interstellar comet came from outside the solar system • Which is going to be the most exciting telescope, the James Webb Space Telescope or the Square Kilometer Array? • What is the most exciting discovery we can expect from the James Webb Space Telescope and the Square Kilometer Array? • How the James Webb Space Telescope and Square Kilometer Array will work. Chris North is a Senior Lecturer in the School of Physics and Astronomy at Cardiff University and host of the Pythagorean Astronomy podcast at pythagastro.uk. Chris is Director of Recruitment and Admissions and the Head of Public Engagement. Working on public engagement in print and TV, education and data visualization for a range of projects, most notably the Gravity Exploration Institute. 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.

May 20, 2025 • 33min
Ask A Spaceman Ep. 248: What’s Going On Inside Neutron Stars?
What’s inside a neutron star? What strange states of matter do we encounter? And what mysteries will we find deep in the core? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter 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, Don T, Steven W, Brian O, Michael J, 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, 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, Charles, Karl W, Den K, George B, Tom B, Edward K, Catherine B, John M, Craig M, Scott K, Vivek D, Deborah A, 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: 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.

May 19, 2025 • 29min
Astronomy Cast Ep. 756: SphereX
https://www.youtube.com/watch?v=72JAZYgqchs Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live on May 12, 2025. NASA’s newly launched SphereX mission is up & operational and has completed its initial checkout and “first light”. Everything looks good! And now it’s starting its science operations. And that’s good enough for Pamela! And THAT means we can talk about it. So let’s do that! There's a new space telescope in town (or at least in LEO). Let's check out what it's looking at and looking to do. SUPPORTED BY YOU This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. Thanks to: BogieNet, Stephen Vei, Jeanette Wink, Siggi Kemmler, Andrew Poelstra, Brian Cagle, David Truog, Ed, David, Gerhard Schwarzer, Sergio Sancevero, Sergey Manouilov, Burry Gowen, David Rossetter, Michael Purcell, Jason Kwong 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.

May 18, 2025 • 6min
Travelers in the Night Eps. 793 & 794: Close Space Rock & An Apollo Space Rock to Follow
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org From April 2024. Today's 2 topics: - Perhaps the most dangerous Amor asteroid is 2006 HZ51 .It was discovered by my team the Catalina Sky Survey. Fortunately the closest 2006 HZ51 will come to our home planet is June 11 of 2116 when it will pass us harmlessly 26 times the distance to our moon away from us. - Recently my Catalina Sky Survey teammate Vivian Carjaval was asteroid hunting in the constellation of Ursa Minor with our Schmidt telescope on Mt. Bigelow when she discovered, 2024 BR4, a two football field diameter Earth approaching asteroid.Vivian’s Apollo asteroid discovery poses no threat to humans since 2024 is as close as it will come to Earth in the next few hundred years. 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.

May 17, 2025 • 9min
ASTROMAN: The Dark Sky Guardian - Aurora Hunting in the Polar Regions During the Solar Maximum
Exodus CL Sit, a transmedia astronomy educator and popular science author, dives into the enchanting world of auroras during solar maximum. He explains the 11-year solar cycle and the mesmerizing colors of the Northern Lights, sparking curiosity among nature lovers. Listeners gain practical tips for optimal observation locations and how to enjoy the spectacle safely. With insights into dark-sky protection and sustainable practices, Exodus inspires a deeper appreciation for the cosmos and its fleeting wonders.

May 16, 2025 • 24min
EVSN - Iceland Has a New Volcanic Fissure Erupting in Fagradalsfjall
In this engaging discussion, guest Nick Castle, a petrologist and researcher at the Planetary Science Institute with a focus on Mars, sheds light on the recent volcanic activity in Iceland's Fagradalsfjall. He explores the unique geological features of this eruption and its implications for regional archaeology. The conversation also touches on fascinating topics like Martian spiders, new basalt types, and methane leaks from melting ice, connecting these phenomena to Earth's dynamic systems and environmental challenges.

May 15, 2025 • 1h
Actual Astronomy - Affordable Wide Field with Brian Ventrudo
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com Episode 483! Today we have a returning Special Guest, though it’s been a while. Dr. Brian Ventrudo is author the Cosmic Pursuits web page and a contributing editor for S&T. He has a Ph.D in Laser Spectroscopy and helped measure the fingerprints of the molecules found in interstellar space and planetary atmosphere. In an email Brian mentioned the TV NP127 being a dream scope…which is remaining just a dream for the time being. But why is the NP 127 such a fantastic design? - Fast, flat field, reasonably portable etc. - What have you configured on the cheap? 120mm, mount eyepieces etc. - Wide field eyepieces and the TS Flat2? Field curvature. - My love from 80mm f5 to apo to giant achromats. - 80% or more of my observing is not the 5 objects that show color, Moon, M, V, J, S - Binoculars, budget 80mm/102mm ED refractors, lower-cost eyepieces, mounts and so forth. - Wide Field Objects to Observe: Multiple objects in the same field, whether it’s just the Moon and a planet in binoculars or the Sword of Orion in winter or the Lagoon & Trifid regions and star clouds of summer, Kemble’s Cascade and NGC 1502. Patreon support thank you’s to Leonid, Matt, Joseph and Ernest 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.

May 14, 2025 • 10min
Guide to Space - What If We Do Find Aliens? How Prepared Is Earth For Meeting Extraterrestrials?
https://www.youtube.com/watch?v=Qtz1wQT1wO8 From Nov 24, 2016. We've been so busy wondering how we'll find aliens that we never stopped to consider what we'll do if we actually encounter them. How does an alien discovery get communicated to the media? Who's responsible to craft a response? 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.

May 13, 2025 • 6min
Exoplanet Radio Ep. 36: A Glimpse into the Early Stages of Planetary Evolution
From September 14, 2023. Hosted by Tony Darnell. Deep in the cosmos, NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered four new worlds orbiting a pair of young stars. These planets are providing scientists with a glimpse into a little-understood stage of planetary evolution - the time when atmospheres are being formed. 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.

May 12, 2025 • 32min
Astronomy Cast Ep. 755: Intermediate Mass Black Holes
https://www.youtube.com/watch?v=QaMNrTyBIWk Streamed live on May 5, 2025. Hosted by: Fraser Cain and Dr. Pamela L. Gay. There are stellar-mass and supermassive black holes. But very little evidence of anything in between. Where are all the intermediate-mass black holes that should be the building blocks of the biggest ones? Actually, the science has been accelerating rapidly and we now know of hundreds of them. The question marks in our understanding are slowly getting replaced with data. Let's review what we now know about intermediate mass black holes and their origins. SUPPORTED BY YOU! This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. Thanks to: BogieNet, Stephen Vei, Jeanette Wink, Siggi Kemmler, Andrew Poelstra, Brian Cagle, David Truog, Ed, David, Gerhard Schwarzer, Sergio Sancevero, Sergey Manouilov, Burry Gowen, David Rossetter, Michael Purcell, Jason Kwong 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.