

The 365 Days of Astronomy
365DaysOfAstronomy.org
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.
Episodes
Mentioned books

Dec 9, 2025 • 6min
Deep Astronomy - A Glimpse Into The Early Universe Ep. 1
https://www.youtube.com/watch?v=nUyT46ZQYsc Hosted by Tony Darnell. From Feb 6, 2025. JWST Discovers Planet Formation in the Conditions of the Early Universe! Journey with the James Webb Space Telescope to the star cluster NGC 346, a vibrant region of star birth and potential planet formation. This image offers a glimpse into the early universe, where stars formed under conditions very different from our own Milky Way. See how JWST's infrared vision reveals protoplanetary disks - swirling clouds of gas and dust around young stars - defying previous models of planet formation. Witness the evidence that planets can form in environments with fewer heavy elements than previously thought, expanding our understanding of how planetary systems like our own come to be. This stunning image, a mosaic of data collected by JWST's NIRCam instrument, represents a breakthrough in our understanding of the cosmos. Discover the potential for new worlds and the endless possibilities that await as we continue to explore the universe. 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.

Dec 8, 2025 • 38min
Astronomy Cast Ep. 774: How Does Bad Science Happen?
The hosts delve into how bad science infiltrates reputable publications, highlighting alarming examples like cherry-picked supernova data. They discuss the pitfalls of p-values and the complexities of statistical noise impacting research conclusions. Exploration of cognitive biases sheds light on how biases influence findings. Academic pressures, funding needs, and the role of peer review networks are examined, revealing how these factors can skew scientific integrity. Ultimately, they reflect on the trade-offs between being a communicator and an academic.

Dec 7, 2025 • 6min
Travelers in the Night Eps. 355E & 356E: Moon Water & Interplanetary Sand Traps
Discover how the Apollo lunar rovers zipped across the Moon while unveiling volcanic glass beads that harbored trace amounts of water! Delve into the mysteries of asteroid Itokawa, a unique rubble pile with a surprising structure. The podcast explores theories on how sandy regions on asteroids can trap small impactors, akin to golf sand traps. Uncover the implications for lunar colonies as scientists consider the potential uses of lunar water for drinking, oxygen, and rocket fuel. A blend of space exploration and cutting-edge theories awaits!

Dec 6, 2025 • 8min
December Sky Guide for Equatorial Region
Hosted by our Director, Avivah Yamani. Today we have sky guide for the rest of December 2025, specifically curated for observers in the equatorial region with Indonesia as the based of location. While the recent dazzling Full Moon and Supermoon gave us a brilliant start, the celestial show continues with powerful planetary meetings and the most spectacular meteor shower of the year! 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.

Dec 5, 2025 • 7min
EVSN - Cotton Candy Super Puffs, the Warped Milky Way Galaxy & Conference Chaos
This installment explores the fascinating concept of cotton-candy exoplanets, the 'SuperPuffs,' that might even have rings! It delves into groundbreaking findings that suggest a collision has warped our Milky Way Galaxy, potentially thanks to the influence of the Sagittarius dwarf galaxy. Additionally, the hosts discuss the chaos of recent conference cancellations due to COVID-19, highlighting the uncertainty impacting scientific gatherings. Join for a blend of cosmic wonders and current events!

Dec 4, 2025 • 35min
Actual Astronomy - Observer's Guide - December
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com - Dec 3-4 – Moon 0.8° N of Pleiades (Occults stars in Virginia) Carbon Star U Lyr best tonight - Dec 4 – Full Moon in Taurus - Dec 7 – Jupiter 4° South of Moon Mercury Greatest Elongation 21° from Sun in morning Sky Endymion sunset rays visible on Moon - Dec 7-8 Moon and M44 - Dec 8 – 16 Psyche at Opposition 9.4 magnitude Asteroid 16 Psyche is a large, metal-rich asteroid, thought to be the exposed core of a protoplanet, located between Mars and Jupiter. It is composed of a high concentration of nickel and iron and is estimated to be worth an astronomical amount of metal. Scientists are studying it to learn more about the formation of Earth's core and other rocky planets, and a NASA mission is currently underway to explore it. - Dec 10 – Moon Occults Regulus 2am - Dec 13 – Geminid Meteor Shower – up to 150 ZHR on morning of the 14th. - Dec 21 – Ursid meteor Shower – 10 zhr - Dec 22 Moon Occults Pluto at 4pm EST - Dec 23 Carbon Star Z Psc best tonight - Dec 24 Comet 24P Schaumasse visible tonight Marie called it again…we have yet another bright comet…8.5 magnitude by mid month, moon leaves sky on 11/12th - Dec 25 Saturn Ring Tilt -0.76 - Dec 26 – Lunar X near crater Werner visible - Dec 27 — Saturn, Neptune and Moon congregate in evening sky. Lunar Straight Wall visible - Dec 29 – Jeweled Handle Visible On Moon - Dec 31 – Moon 0.9° N of Pleiades Carbon Star T Lyn best tonight 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.

Dec 3, 2025 • 1h 5min
Awesome Astronomy - December Part 1: Icy Telescopes & Martian Lightning
Join Paul Hill and Dr. Jenifer Millard as they explore the latest in astronomy! Discover the fascinating updates on the Thirty Metre Telescope and why Spain is stepping in to host. Get the scoop on Martian lightning detected by Perseverance and the connection between meteoroids and dust avalanches on Mars. Unravel the mysteries of asymmetrical supernovae and get holiday shopping tips for telescopes and accessories. Plus, don't miss the December celestial highlights and deep-sky targets!

Dec 2, 2025 • 38min
Ask A Spaceman - Ep. 261: What are Black Dwarfs?
What happens to a white dwarf when it cools off? How long does it take? Do they just stay black forever, or will something more interesting happen to them someday? 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: https://www.pmsutter.com/books 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, 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, Lisa R, Kevin B, Aileen G, Steven W, Deb A, Michael J, Phillip L, Steven B, Mark R, Alan B, Craig B, Richard K, Stephen J, Joe R, David P, Justin, Tracy F, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Tim Z, Linda C, The Tired Jedi, Lode D, Bob C, Red B, Stephen A, James R, Robert O, Allen E, Michael S, Reinaldo A, Sheryl, David W, Chris, Michael S, Erlend A, James D, Larry D, Karl W, Den K, Edward K, Craig M, Scott K, Vivek D, Barbara C, Brad, Azra K, Steve R, Koen G, and Narrative Dude! 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.

Dec 1, 2025 • 33min
Astronomy Cast Ep. 773: What Would You Do With $1 Billion For Astronomy?
https://www.youtube.com/watch?v=MI7BBHAhdSo Hosted by: Fraser Cain and Dr. Pamela L. Gay. Streamed live on Nov 9, 2025. We are powerless fans of space exploration. But what if some fool gave us the authority and funding to make our space dreams a reality? Someone asked us what we'd do with a billion dollars. What missions? Which telescopes? But what if we had more? 100 Billion! A trillion! All the monies! You keep asking, and this week we answer you! Come hear what Fraser and Pamela would do if they were given complete control over $1billion that had to be used for astronomy. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, BogieNet, Brian Cagle, Burry Gowen, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael Purcell, Sergey Manouilov, Siggi Kemmler, Sérgio Sancevero 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.

Nov 30, 2025 • 6min
Travelers in the Night Eps. 353E & 354E: Peaceful Star & Martian Debris
Discover the wonders of our Sun as Dr. Grauer highlights its stability compared to other stars and its crucial role in supporting life on Earth. Explore the intriguing TRAPPIST-1 system, located 40 light-years away, and hear about the potential for habitability around its red dwarf star. Dive into the mystery of Martian Trojan asteroids, which may have formed from debris blasted off Mars during ancient impacts. New research reveals evidence connecting these asteroids to the planet's violent history. It's a cosmic journey you won't want to miss!


