The 365 Days of Astronomy

365DaysOfAstronomy.org
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Nov 29, 2025 • 13min

Folklore - Tokuzou's Star: When the Northern Star Moved

Explore the enchanting tale of Tokuzou, a legendary mariner from Osaka, who navigated by Polaris, the North Star. His wife's keen observation reveals a surprising shift in the star's position, sparking worry about his safe return. As Tokuzou confronts this challenge, he conducts an experiment with a pine tree to measure Polaris' movement. The story seamlessly blends folklore with modern astronomy, offering a reminder that even reliable guides can change. Avivah invites listeners to try the experiment themselves, connecting past and present.
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Nov 28, 2025 • 20min

EVSN - Another Potential Dark Matter Particle Isn't Found

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: 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.
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Nov 27, 2025 • 40min

H'ad Astra Historia - The 2026 Doggett Prize, Part 1

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 here to share stories from and about the people who study the stars, planets, and the cosmos. We'll be hearing from individuals who not only study the history of astronomy, but also those who lived it, who were "in the room" during pivotal events within the last 50 years or so. podcast music: "Frost Waltz" Kevin MacLeod (incompetech.com), licensed under creative commons: by attribution 4.0 license (http://creativecommons.org/licenses/by/4.0/) Podcaster: Loretta Cannon (an AAS affiliate via Rose City Astronomers) is a science-and-word-nerd who really likes outer space and the people who study it. She quite enjoys working as HAD's podcaster, sharing astronomy stories to you. 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.
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Nov 26, 2025 • 16min

Cheap Astronomy - Implausible Engineering: Building A Telescope Big Enough To See Aliens

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: 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.
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Nov 25, 2025 • 6min

Deep Astronomy - The Amazing Orion Nebula As Seen By Hubble & Spitzer Space Telescope

Discover the breathtaking beauty of the Orion Nebula as revealed by Hubble and Spitzer. Experience a stunning flythrough that combines visible and infrared data, showcasing hidden stars emerging from cosmic dust. Learn how stellar winds shape this region and the fascinating protoplanetary disks that hint at star formation. Tony Darnell guides you through centuries of observations and the significance of this celestial wonder, deepening our appreciation of the universe.
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Nov 24, 2025 • 32min

Astronomy Cast Ep. 772: 2025 Gift Guide

https://www.youtube.com/watch?v=panahVzZ6nw 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 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.
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Nov 23, 2025 • 6min

Travelers in the Night Eps. 351E & 352E: Active Asteroid & Flying Mud Balls

Dive into the intriguing world of active asteroids, like 2008 GO98, which swing between asteroid and comet behavior! Discover how collisions and thermal effects spark comet-like activity. Learn about the carbon-rich C-type asteroids that make up 75% of asteroid discoveries and their potential for water and other resources. Explore the connection between these bodies and the very origins of Earth's water. Uncover the role of C-type asteroids in planet formation and their importance for future space exploration.
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Nov 22, 2025 • 1h 8min

The Cosmic Savannah Ep. 76: First Ever Live Show Debut at Astronomy Olympics

Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. Watch the whole show on YouTube! [Editor's note: Start at 20:28 where the audio starts with some rocking marimba action! The last 5 minutes here are more tunes from the marimba band.] https://www.youtube.com/live/Dgw6mz5bTG4?si=xAr-fa0GvLwpT-pc This week, join us for a special live episode from the 2024 IAU General Assembly in Cape Town, South Africa, featuring black hole simulations expert Dr. Nicole Thomas and winner of the 2011 Nobel Prize for Physics Prof. Brian Schmidt. Cape Town born Dr. Nicole Thomas returns to The Cosmic Savannah four years after previously featuring in episodes 9 and 14 as a PhD student. She shares with us the story of her illustrious academic career around the world since then, including a postdoctoral research position in the UK at the Institute of Computational Cosmology, University of Durham and now a prestigious Jim Buckee Fellowship at the International Centre for Radio Astronomy Research, University of Western Australia. Nicole explains to us her latest research on using state-of-the-art supercomputer simulations to understanding the havoc that supermassive black holes wreak on galaxies. She does this by trying to model how the Universe works using our current understanding of physics and comparing her results to images of the real Universe taken with South Africa's MeerKAT telescope. She hints that she looks forward to applying these simulations to the findings of the upcoming SKA telescope! Next, Nobel Laureate Prof Brian Schmidt, a Distinguished Professor at the Australian National University joins the team on stage. Brian takes us back to the night of the 4th of October 2011 when he received a call from Sweden telling him he had won the Nobel Prize. Brian received the prize, alongside two other people, for having discovered the accelerating expansion of the Universe. He discusses what life has been like after such a monumental achievement, including his experiences as Vice-Chancellor of the Australian National University. Finally, he tells us about his plans to get back to doing research and reveals what he thinks the next big astrophysical breakthroughs will be using the SKA telescope under construction in South Africa and Australia. 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.
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Nov 21, 2025 • 30min

EVSN - Active Black Hole's Surge in Brightness Due to Magnetic Flip

In this intriguing discussion, Dr. Cathy Weitz, a senior scientist at the Planetary Science Institute, shares insights on a newly discovered hardened layer at Mount Sharp on Mars. She explains the significance of this marker horizon for understanding Mars' geological history. The conversation covers various hypotheses about its formation, including ash and enhanced salt cementation. Weitz also highlights how Curiosity's observations tie into broader Martian timelines and potential evidence of water, offering a thrilling glimpse into planetary science.
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Nov 20, 2025 • 59min

Actual Astronomy - Mark Radice's Recent Astronomy Adventures

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com Our friend Mark Radice joins us to talk about his recent trip to Namibia where he helps run astronomy tours at a ranch. Great fun observing with guests and celestial sights including: - Alpha Centauri double star - 47 Tucanae – simply stunning - Comet SWAN (couldn't see Lemon) - Milky Way constellations - NGC 253 galaxy; M8 Lagoon; Tarantula Nebula - Saturn - Neptune - Moon - Sirius and Pup 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.

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