Ask A Spaceman - Ep. 261: What are Black Dwarfs?
The 365 Days of Astronomy
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: All episodes: Watch on YouTube: 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,...
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Astronomy Cast Ep. 773: What Would You Do With $1 Billion For Astronomy?
The 365 Days of Astronomy
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...
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Travelers in the Night Eps. 353E & 354E: Peaceful Star & Martian Debris
The 365 Days of Astronomy
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. From September 2025. Today's 2 topics: - The Sun is our very own well behaved star. It rises and sets in our sky every day and powers and makes possible all life forms on planet Earth. A new appreciation for our Sun is growing as we learn more about other suns and their families of planets. The Trappist-1 system of 7 planets orbits a dim M type red dwarf star about 40 light years away in the constellation of Aquarius....
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Folklore - Tokuzou's Star: When the Northern Star Moved
The 365 Days of Astronomy
Hosted by our Director, Avivah Yamani. In Japanese folklore Tokuzou was a great mariner from Osaka who relied on Polaris (as we europeans call it), the North Star for navigation at sea. Then one night his wife saw that it had shifted out of place and she was afraid that her husband wouldn’t be able to find his way back home! 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...
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EVSN - Another Potential Dark Matter Particle Isn’t Found
The 365 Days of Astronomy
From April 21, 2021. Researchers looked for a slowdown in black hole rotational speeds due to the collection of ultralight bosons, but they found nothing, eliminating the hypothetical particle from the list of possible dark matter particles. Plus, neutrino hunting, neutron stars, and a space hurricane. 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!...
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H’ad Astra Historia - The 2026 Doggett Prize, Part 1
The 365 Days of Astronomy
Episode 207. 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 our interview, we’ll hear about his background and explore some of his many achievements. This is the first of multiple episodes presenting our interview with him. H’ad astra historia is the official podcast for the Historical Astronomy Division of the American Astronomical Society. We’re...
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Cheap Astronomy - Implausible Engineering: Building A Telescope Big Enough To See Aliens
The 365 Days of Astronomy
Hosted by Steve Nerlich. From October 14, 2024. Episode 5 — Too much is never enough. Cheap Astronomy's vision for space exploration: build whopping-big telescopes and send the robots. 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...
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Deep Astronomy - The Amazing Orion Nebula As Seen By Hubble & Spitzer Space Telescope
The 365 Days of Astronomy
From Jan 12, 2018. Hosted by Tony Darnell. Like this content? Please consider becoming a patron: On January 11, 2017 the Spitzer and Hubble Space Telescope missions released an amazing flythrough of the Orion Nebula, or M42. Never before have we had such a detailed look at this naked eye object in two wavelengths. Using actual scientific imagery and other data, combined with Hollywood techniques, a team at the Space Telescope Science Institute in Baltimore, and the Caltech/Infrared Processing and Analysis Center (IPAC) in Pasadena, California, has created the best and most...
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Astronomy Cast Ep. 772: 2025 Gift Guide
The 365 Days of Astronomy
Hosted by: Fraser Cain and Dr. Pamela L. Gay. Streamed live on Nov 9, 2025. It’s time once again for our annual gift giving guide. We’ve got recommendations for books, movies, TV shows, games and of course astronomy gear to satisfy the space nerds in your family. The Christmas season is almost upon us, and with it comes excuses to inject science into the lives of those you love... or ask for them to give you that book, lens, or art print you already know you'll love. In this episode, Fraser and Pamela share the things they think would make good gifts for nerds like us. This...
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Travelers in the Night Eps. 351E & 352E: Active Asteroid & Flying Mud Balls
The 365 Days of Astronomy
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. From August & September 2025. Today's 2 topics: - When it was first spotted by astronomers at Space Watch on Kitt Peak, 2008 GO98 appeared to be one of many outer main belt asteroids moving through the night sky. 9 years later when my Catalina Sky Survey teammate Greg Leonard observed it with our 60 inch telescope on Mt. Lemmon it had a coma and a tail like a comet. Active asteroids like 2008 GO98 have asteroid orbits...
info_outlineHosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com
Oct 3 - first quarter Moon & Lunar Straight Wall visible
Oct 5 - Saturn 4 degrees North of the Moon … further for us
Oct 7 - Neptune is 4 degrees North of Moon
Oct 8 - Morning Sky - Mercury greatest Elongation West 18-degrees from Sun.
Oct 8 - Jupiter NW of the Moon by ~ 4 degrees
Oct 9 - full Moon in Pisces
Oct 11/12 - Uranus Occultation by Moon
Oct 12 - Double Shadow Transit on Jupiter…but you need to be West, Hawaii etc.
Oct 14/15 - Moon and Mars in same binocular field.
Oct 16 - Io Shadow Transit on Jupiter
Oct 17 - Last quarter Moon
Oct 18 - 230 Athamanthis Opposition & mag. 9.9
Athamantis (minor planet designation: 230 Athamantis) is a large main-belt asteroid that was discovered by K. de Ball on September 3, 1882, in Bothkamp. It was his only asteroid discovery….named after Athamantis, daughter of Athamas the mythical Greek king of Orchomenus.
Oct 19 - Jupiter Double Shadow Transit but the UK is favored
Oct 20/21 - Orionid Meteor Shower Peak - Comet Halley
Oct 23 - Zodiacal Light Visible in East for next 2 weeks
Oct 25 - new Moon & Partial Solar Eclipse -Scandinavia, Eastern EU.
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!
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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.