Paul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. It's time for our annual review of the year, a look forward to next year and of course the Panto!…and the return of an old face! 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 Patr...
Jan 21, 2026•55 min
Hosted by Dr. Paul M. Sutter. How does the double-slit experiment work? What does it teach us about reality and measurement if we try to mess with the experiment after it's already started? How does quantum complementarity guide us with how to think about it? 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...
Jan 20, 2026•31 min
https://www.youtube.com/watch?v=rTFbrCIkrfU Streamed live on Jan 12, 2026. Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Humans live short lives, and from our perspective the seasons are something that come and go with perfect regularity. But astronomers know the terrible truth! And that there are cycles that slowly shift over tens of thousands of years, shifting the cycles and the Earth's climate. Today we'll talk about the Milankovich Cycles! The Earth's orbit, t...
Jan 19, 2026•31 min
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 May 2025. Today's 2 topics: - My Catalina Sky Survey teammate Hannes Gröller was asteroid hunting in the constellation of Ursa Major with the University of Arizona 90 inch Bok telescope on Kitt Peak when he discovered a faint moving object surrounded by a tiny gas and dust cloud called a c...
Jan 18, 2026•6 min
Dive into the wonders of the lunar eclipse! ASTROMAN breaks down the 2026 total "Blood Moon" in Asia, offering tips for skywatchers and the science behind the shadow. "ASTROMAN: the Dark Sky Guardian" is a podcast channel that aims to explore popular science in multiple disciplines and research on interdisciplinary approaches, such as sustainability, dark-sky protection, astrophotography, space exploration, astronomy innovation, inclusive science communication, and STEAM Education by integrating...
Jan 17, 2026•7 min
From January 7, 2026. In this episode, we're pleased to say we get to focus on science, as we bring you hot Jupiters, a tear-drop shaped Jupiter massed… something…? - and news of objects getting torn apart and other objects getting merged together as our universe lights up our night. 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 wit...
Jan 16, 2026•33 min
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com In this podcast (Episode 519) we talk with a special guest & long-time listener Clint Reading (from Nebraska, formerly from Idaho) about his astro-tourism trips to OzSky which is a biannual event for amateur astronomers from the northern hemisphere to have the opportunity to see the southern skies. We learn how to prepare for an astronomy trip to Australia, what to bring to get the ...
Jan 15, 2026•55 min
Hosted by Steve Nerlich. Well… Cheap Astronomy confirms some mysteries are still mysteries! Dear Cheap Astronomy – Is warp drive looking any more possible? Well, no, insofar as it looks about as possible as it ever did, which is to say, it's probably impossible, but at the same time, it's best to never say never. As we've covered before, the nature of space-time precludes the possibility of faster than light travel simply because light travels as fast as it is possible to travel in space-time. D...
Jan 14, 2026•15 min
https://www.youtube.com/watch?v=WvdZpZuz-WQ Hosted by Tony Darnell. From Feb 13, 2025. The deep fields taken by the Hubble Space Telescope are now legendary. Astronomers used the most complicate and expensive instrument ever put into space to stare at nothing, a very risky move, but one that paid off. What happened when we did the same thing with the James Webb Space Telescope? We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit:...
Jan 13, 2026•8 min
https://www.youtube.com/watch?v=cySk8O0iVjU Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Jan 5, 2026. Freeman Dyson asked a fascinating question. What would it look like if a civilization was using all the energy coming from their star? And what form would this take? This introduced the concept of a Dyson Sphere, or more realistically, a Dyson Swarm surrounding a star. But if you're skeptical about the concept, you're in good company. This show is...
Jan 12, 2026•37 min
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 2025. Today's 2 topics: - On a single February night my Catalina Sky Survey teammate Jacqui Fazekas reported the discovery of 5 Earth approaching objects using our small but mighty Schmidt telescope on Mt. Bigelow, Arizona.Rest assured that on any given night there are asteroid hunte...
Jan 11, 2026•6 min
As part of the NSF–DOE Vera C. Rubin Observatory First Look event in June 2025, Rubin announced that it had observed thousands of asteroids cruising about our Solar System, about 1,900 of which have been confirmed as never-before-seen. Within the flurry, a team of astronomers has discovered 19 super- and ultra-fast-rotating asteroids. One of these is the fastest-spinning asteroid larger than 500 meters (0.3 miles) ever found. In this podcast, Dr. Sarah Greenstreet discusses these fast spinning a...
Jan 10, 2026•13 min
From December 25, 2025. In this week's episode, we look at planets younger than fossils, celebrate relativity repeatedly working as expected, and peer at previously only theorized 1st generation stars using JWST. We celebrate the completion of the construction of the Nancy Grace Roman Space Telescope, and look in on all the recent launches. All this and more is coming to you right here, and right now! We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and produ...
Jan 09, 2026•30 min
Hosted by Avivah Yamani. January 2026 is a packed month for equatorial skywatchers! Catch the Quadrantid meteor shower peak on the new year and Jupiter steals the spotlight at opposition. 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! ---------------...
Jan 08, 2026•6 min
Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. So it turns out Soundgarden nailed astrophysics in 1994. We explore latest thinking on Little Red Dots, Globular Custers, oldest supernovae, No-ceans on Titan as well as our monthly skyguide and moon guide. 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...
Jan 07, 2026•50 min
What is causal determinism? What are some of the ways that physics can permit free will? What does emergence have to do with all of this? 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 #AskASpace...
Jan 06, 2026•32 min
https://www.youtube.com/watch?v=uijiic8crBQ Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Dec 29, 2025. How big can a star get? This is a calculation made by one of the original pioneers of modern astronomy, Sir Arthur Eddington. And it's named after him, the Eddington Limit. Now, astronomers are finding examples of giant black holes early in the Universe, calling into question some of Eddington's assumptions. Let's explore this fascinating concept...
Jan 05, 2026•36 min
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 2025. Today's 2 topics: - On 27 December 2024 the Atlas group in Chile discovered an object now known as 2024 YR4 which appeared to have a significant chance of impacting Earth 22 December of 2032. The most recent data indicates the chance that 2024 YR4 impact Earth is about 1 in 25,...
Jan 04, 2026•6 min
Paul Hill & Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. In this chatty news episode 164 we chat about more Artemis mission shenanigans and how the Russians have wrecked their only human rated launch pad. 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 th...
Jan 03, 2026•54 min
From October 9, 2020. Join us as we take a look back to two weeks' worth of planetary stories, including solar system research on a binary trans-Neptunian object, diamonds in meteorites, the stratification of Titan's lakes, and how Jupiter affected Venus' habitability. Plus we go farther into space and see how super flares affect the chances for life on exoplanets and find an exoplanet with vaporized metal in its atmosphere. We've added a new way to donate to 365 Days of Astronomy to support edi...
Jan 02, 2026•11 min
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com This month in episode 516 we talk about the many things to see in the night sky including, carbon stars, double stars, 24P Schaumasse is a Comet that just cracks 8th magnitude making it visible in binoculars. We also detail how people can explore Jupiter through a telescope followed by many NGC and Messier Objects you can see in the winter sky. Jan 1 - Struve 627 in Orion Colorful Doubl...
Jan 01, 2026•40 min
Episode 209. Today's guest: Professor Thomas Hockey, with the University of Northern Iowa, is the recipient of HAD's 2026 LeRoy E. Doggett Prize, which is awarded biennially to an individual who has significantly influenced the field of the history of astronomy by a career-long effort. In this episode, we'll not only conclude our discussion of his most recent book, but we'll also talk about some rather fun and interesting topics. H'ad astra historia is the official podcast for the Historical Ast...
Dec 31, 2025•30 min
Episode 208. Today's guest: Professor Thomas Hockey, with the University of Northern Iowa, is the recipient of HAD's 2026 LeRoy E. Doggett Prize, which is awarded biennially to an individual who has significantly influenced the field of the history of astronomy by a career-long effort. In today's episode, our focus is mainly on his more significant books. H'ad astra historia is the official podcast for the Historical Astronomy Division of the American Astronomical Society. We're here to share st...
Dec 30, 2025•37 min
https://www.youtube.com/watch?v=kGY4t683Xro Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Dec 22, 2025. Shortly after the big bang there were almost exactly the same amounts of matter and antimatter in the Universe, but there was just enough of a difference that we live in a matter-dominated Universe. But it didn't have to be that way! Explaining this mystery has been one of the great mysteries in astronomy, and today we'll see if there's been any ...
Dec 29, 2025•31 min
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 March 2025. Today's 2 topics: - Astronomers have yet to discover any long lasting natural object, beside our Moon, which orbits the Earth, however, occasionally, a small space rock enters into a temporary dance with our home planet. - My Catalina Sky Survey teammate Greg Leonard was astero...
Dec 28, 2025•6 min
Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. In this "mid-season special" episode, we introduce you to an extraordinary giant radio galaxy nicknamed "Inkathazo", meaning 'trouble' in isiXhosa and isiZulu. We speak with Kathleen Charlton, a Master's student from the University of Cape Town, about the discovery of Inkathazo and her newly published work on the topic. Kathleen spoke with us from the University of Oxford, where she was working with team members from...
Dec 27, 2025•35 min
From January 27, 2021. It's a day ending in 'y', and planetary formation theories are once again being challenged. This time the challenge comes from a six-planet system with five planets in resonance. Plus a cloudless Jupiter, TRAPPIST-1, volcanoes, and some science of the weird. 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 y...
Dec 26, 2025•22 min
Hosted by Dr. Pamela Gay. A gentle fancy for the Christmas Season—an oft-told tale with a wistful twistful of Something that left the Earth with a wing and a prayer. Earlier today, I had the stark realization that at the core of many Christmas stories is a core of sorrow or longing that must somehow be transformed into joy. Scrouge must learn charity. Ralphie longs for a bb gun and is betrayed by his joy. George is on the brink of suicide when his Guardian Angel intercedes. John McClane just nee...
Dec 25, 2025•20 min
Hosted by our Director, Avivah Yamani! What does "solstice" really mean? In this episode, we unpack the Sun's yearly turning point, the seasonal flip between hemispheres, and the ancient sky-architecture of Stonehenge, from June solstice sunrise to December solstice sunset. 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 fri...
Dec 24, 2025•6 min
https://www.youtube.com/watch?v=UE8yHySiJ4A Hosted by Tony Darnell. From Sep 21, 2012. This video was done by request from a Space Fan. Hope it's what you had in mind. IC 1101 is over one billion light years away in the constellation Virgo, just over the border from Serpens. https://en.wikipedia.org/wiki/IC_1101 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 y...
Dec 23, 2025•8 min
