
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

Jun 19, 2025 • 1h 11min
Actual Astronomy - The Chiricahua Sky Village
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com The Actual Astronomy Podcast presents The Chiricahua Sky Village. In this episode we talk with Peter Monson who has a well established observing site at the Sky Village in Arizona. We discuss the dark skies, weather conditions, facilities and how people set up their lots as well as how folks interested in getting a site of their own can become involved. Concluding Message: Please subscribe and share the show with other stargazers you know and send us show ideas, observations and questions to actualastronomy@gmail.com 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.

Jun 18, 2025 • 15min
Cheap Astronomy - Dear CA #119: Out There!
Space travel or the lack thereof. Hosted by Steve Nerlich. Dear Cheap Astronomy – Interstellar trade As regular listeners are aware, here at Cheap Astronomy, we think faster than light travel just ain’t going to happen. That limits your trade options a good deal if our potential alien trading partners are anywhere up to a hundred light years or more away. Dear Cheap Astronomy – Why aren’t we doing more with artificial gravity Good question. As we’ve discussed on this podcast and as others have discussed on pretty much every space-related podcast there is, zero gravity – OK, microgravity – is really bad for you. Your bones dissolve, your muscles wither, your cardiovascular system is deconditioned, your eye geometry changes and if that’s not bad enough your face gets all puffy too. 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.

Jun 17, 2025 • 35min
Ask A Spaceman - Constants of Nature Part 2
Episode 250. Part 2 of 2! What are the modern constants of nature? Is the Universe fine-tuned for life? Does the multiverse or string theory explain the origins of the constants? 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, 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, Deborah A, 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, 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: 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.

Jun 16, 2025 • 36min
Astronomy Cast Ep. 759: The Commercial Space Program
https://www.youtube.com/watch?v=clLLqzWyT-Q Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live on Jun 9, 2025. Humanity has turned its focus back to the Moon, sending a fleet of spacecraft to the lunar surface. Some are run by the government, but there’s a whole new group of commercial landers bearing instruments to the lunar surface. Is this the future of lunar exploration? Space used to be a place occupied by government-funded and military missions, but today, we're seeing the rise... and fall (somersault, crash, and explosion) of missions with commercial design and funding. Let's talk about how this is good, bad, and maybe just too soon. 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. https://www.patreon.com/365DaysOfAstronomy 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.

Jun 15, 2025 • 6min
Travelers in the Night Eps. 319 & 320: Lost and Found & WOW! What a Ride!
Asteroid tracking is full of surprises and challenges. Observers only catch glimpses of an asteroid's long journey, making precise location tricky. Excitingly, a newly discovered asteroid could provide thrilling exploration opportunities, all while assuring us it will safely miss Earth. The show dives into the significance of this collaborative work in the search for potential resources in space and the future of space colonization. These adventures truly highlight the wonders of astronomy!

Jun 14, 2025 • 12min
NOIRLab - Messengers of Time and Space
NSF NOIRLab, funded by the U.S. National Science Foundation (NSF), has released the fulldome planetarium show, Messengers of Time and Space. This free-to-download production brings the combination of the International Gemini Observatory, funded in part by NSF and operated by NSF NOIRLab, and NSF–DOE Vera C. Rubin Observatory, funded by NSF and the U.S. Department of Energy's (DOE) Office of Science and jointly operated by NOIRLab and DOE’s SLAC, to the forefront of humanity’s quest to understand our ever-changing cosmos. This podcast discusses the production process of this planetarium show and tells listeners where how they can view the show. Bios: - Rob Sparks is in the Communications, Education and Engagement group at NSF’s NOIRLab in Tucson, Arizona. - Peter Michaud is a member of the Communications, Education and Engagement group at Gemini Observatory in Hawaii. - Ron Proctor is an experienced science communicator and immersive media producer specializing in astronomy data visualization. With a background in planetarium education and a deep knowledge of Blender, Ron transforms complex scientific discoveries into compelling visual experiences for planetarium domes, Science on a Sphere, media releases and public outreach. Currently at NSF NOIRLab, Ron leads the creation of 360º content and tools that bring cutting-edge research to general audiences. Ron's work bridges the gap between scientists and the public, driven by a passion for storytelling, education, and technological innovation. Links: NOIRLab Press Release: https://noirlab.edu/public/news/noirlab2518/ Messengers Of Space And Time Download: https://noirlab.edu/public/videos/messengers/ NOIRLab social media channels can be found at https://www.facebook.com/NOIRLabAstro https://twitter.com/NOIRLabAstro https://www.instagram.com/noirlabastro/ https://www.youtube.com/noirlabastro 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.

Jun 13, 2025 • 22min
EVSN - Moon Rock Samples Show Signs of Late Volcanism
From October 7, 2021. An analysis of the most recent sample taken from the Moon and returned by the Chang’e-5 mission shows that the basaltic rock is about two billions years old. This age implies a previously unknown heat source in the region. Plus, how plants and animals record climate change, and this week’s What’s Up. 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.

Jun 12, 2025 • 1h 13min
Awesome Astronomy - June Part 1: Lancing Galaxies and Angry Emails
Dive into a galaxy of fascinating topics as hosts discuss NASA's budget cuts and their impact on future missions. Laugh along with their tales of unexpected wildlife encounters in suburban gardens, while exploring the exciting space efforts from Wales. Discover the cosmic mysteries of a new dwarf planet, Jupiter's growth, and the challenges of contamination on Mars. The banter blends humor and personal stories, making it a delightful mix of personal life and astronomical wonders, perfect for stargazers and science lovers alike!

Jun 11, 2025 • 51min
Big Impact Astronomy - TRIBU Guadalajara
TRIBU Cultura Astronómica is an organization dedicated to the dissemination of astronomy and scientific culture. It is an organization dedicated to boosting awareness of the Universe through astronomical experiences. - We facilitate astronomical observation experiences with telescopes and specialized guides that take you on an adventure through the cosmos. - Learning spaces directed to all public audiences to learn about the Universe. In addition we facilitate content, activities and strategies for teaching astronomy. - We provide downloadable audiovisual content of scientific disclosure centered on the learning of astronomy to pique your interests in science. Mike Simmons is the founder of Astronomy for Equity ( https://bmsis.org/astro4equity/ ). 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. Mike Simmons, host of Big Impact Astronomy, has a 50-year history of leading astronomy organizations and projects, the last 25 years internationally. Astronomy has taken him around the world where he’s connected with the subjects of Big Impact Astronomy, seen their impact, and heard their stories. These are personal journeys for both the host and the guests. 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.

Jun 10, 2025 • 8min
Exoplanet Radio - The Importance Of Gliese 581g
The discovery of Gliese 581g is a game-changer in the search for habitable planets. It sits in its star's habitable zone, raising the exciting possibility that many more planets could support life. With estimates suggesting 10 to 30 billion stars in our galaxy could have suitable conditions, the implications are staggering. The discussion dives into the specific features of Gliese 581g, such as its mass and surface gravity, offering insight into what makes this exoplanet so intriguing for future exploration.