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.
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Guide To Space - Project Dragonfly. A Laser-Powered Probe to Alpha Centauri
03/11/2026
Guide To Space - Project Dragonfly. A Laser-Powered Probe to Alpha Centauri
From Jan 6, 2019. The distances between stars are so vast, it’s hard to wrap your mind around it. Even our far flung Voyagers have barely reached interstellar space, and would take tens of thousands of years to get to even the nearest star. But scientists and engineers are considering what it would actually take to send a spacecraft to another star. It’s called Project Dragonfly, and would use existing or near future technologies to send a 3,000 kg spacecraft to Alpha Centauri within 100 years. Project Dragonfly paper: 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Deep Astronomy - The Magnificent Carina Nebula in 4K
03/10/2026
Deep Astronomy - The Magnificent Carina Nebula in 4K
Hosted by Tony Darnell. From May 16, 2025. Join this channel to get access to special content including livestreams: In July 2022, NASA’s James Webb Space Telescope made its public debut with a series of breathtaking images. Among them was an ethereal landscape nicknamed the Cosmic Cliffs. This glittering realm of star birth is the subject of a new 3D visualization derived from the Webb data. The visualization, created by NASA’s Universe of Learning and titled “Exploring the Cosmic Cliffs in 3D,” breathes new life into an iconic Webb image. Visuzliation created at STScI and available here: 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Astronomy Cast Ep. 785: Magnetars
03/09/2026
Astronomy Cast Ep. 785: Magnetars
Hosted by: Fraser Cain ( ) and Dr. Pamela L. Gay ( ) Streamed live March 6, 2026. Magnetars are a special type of neutron star with physics that defy comprehension. Magnetic fields so powerful they could strip you apart at an atomic level. But, where do they come from? So many mysteries to uncover about magnetars. Back in December 2004, a gamma rays washed out cameras and zotted satellites as a star on the other side of the Milky Way shifted around its magnetic fields. Magnetars are violent that way. In this episode of Astronomy Cast, Fraser and Pamela take on this tiny terrible monsters. This show is supported through people like you on In this episode, we'd like to thank: Burry Gowen, Eric Lee, Jeanette Wink, Michael Purcell, Andrew Poelstra, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Joe McTee, Sergey Manouilov, Siggi Kemmler, Sergio Sancevero 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Travelers in the Night Eps. 861 & 862: Big Bear Observatory & New Planet 9 Search
03/08/2026
Travelers in the Night Eps. 861 & 862: Big Bear Observatory & New Planet 9 Search
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 2025. Today's 2 topics: - Big Bear Solar Observatory is a unique facility operated by the New Jersey Institute of Technology. Its 1.6 meter Goode Solar Telescope is located on the north side of Big Bear Lake at an elevation of 6,760 feet above sea level in the San Bernardino Mountains of Southern California. Being surrounded by cold water at high altitude provides the site with exceptional atmospheric stability and thus the possibility of extremely high quality solar images. It is hard to predict the value of basic research, however, work like this will eventually enable scientists to better understand how solar flares and other activity in the Sun’s atmosphere effect astronauts, communications systems, auroras, radio blackouts, geomagnetic storms, satellites, power grids, and more on our home planet. - Recently, using data from the Japanese infrared telescope AKARI, Dr. Amos Y.A. Chen and his collaborators published a paper in the Publications of the Astronomical Society of Australia which predicts the approximate positions of two massive Planet 9 candidates. To arrive at their conclusions this team carefully searched the AKARI observations for objects which over the course of months change their positions relative to distant stars and galaxies. Further observations are required to determine if either of these move like a Planet 9 or if instead they are some other type of distant astronomical object. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Equatorial SkyGuide For March
03/07/2026
Equatorial SkyGuide For March
Hosted by our Director, Avivah Yamani. A guide to March 2026 sky events from Indonesia, featuring the total lunar eclipse on March 3rd, planetary conjunctions, the March equinox, and dark sky campaigns. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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EVSN - Glaciers: Going, Going…Gone
03/06/2026
EVSN - Glaciers: Going, Going…Gone
From February 25, 2026. The glaciers are melting, the volcanoes are erupting, and earthquakes are shaking things up. Let’s discuss. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Actual Astronomy - The Observer’s Calendar for March 2026
03/05/2026
Actual Astronomy - The Observer’s Calendar for March 2026
Episode 524. Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. This month we talk about another Comet, colorful doubles, Mira at maximum. We also have one of the brightest clusters in the skies, the Beehive, well placed while the Moon meets with Antares then Regulus. End of Feb. beginning of March Comet C/2024 E1 Wierzchos 6th – 7th magnitude Mar 1 – Struve 1183 Monoceros – Colorful Double Mar 2 – Regulus .4° S of Moon Mar 3 – Full Moon & Lunar Eclipse for Western NA, 5:30am here in Regina. - 5 Lynx colorful double star Mar 5 – Zodiacal Light as we get into the new moon, seen in W after dark. Mar 7 – Long Period Variable Star Mira at Max - Carbon Star Y Hydra best, low in the south. Mar 8 – daylight saving time begins at 3am Mar 9 – M44 & M67 well placed this evening. Mar 10 – Antares 0.7° N of Moon Mar 11 – Last quarter Moon & Gegenschein high in S at midnight - Two shadows visible on Jupiter Mar 11/12th but below horizon for us - NGC 2683 well placed Mar 12 Lunar Curtis X visible - NGC 2775 well placed Mar 13 – M93 well placed Mar 14 – M46/M47 well placed - Comet 29P/Schwassman-Wachmann M=15? Mar 15 – Spot Capella unaided eye before sunset this week - NGC 2477 well placed Mar 18 – New Moon Mar 19 – Young Crescent Moon in west after sunset Mar 20 – Spring Equinox - Carbon Star V Ophiuchi best in pre-dawn Mar 21 – Asteroid 20 Massalia at opposition M=8.9: 20 Massalia is a stony asteroid and the parent body of the Massalia family located in the inner region of the asteroid belt, approximately 145 kilometers (90 miles) in diameter. Discovered by Italian astronomer Annibale de Gasparis on 19 September 1852, it was named for the Latin name of the French city of Marseille, from which the independent discover Jean Chacornac sighted it the following night. It was the first asteroid that was not assigned an iconic symbol by its discoverer. Mar 23 – Carbon star S Scuti best in pre-dawn Mar 25 – First Quarter Moon - Lunar X near crater Werner visible - Lunar straight wall visible - Asteroid 15 Eunomia at opposition: 15 Eunomia is a very large asteroid located in the middle of the asteroid belt. It is the largest of the stony (S-type) asteroids and is estimated to contain approximately 1% of the total mass of the entire asteroid belt. Key Facts and Discovery: - Discovery: It was discovered on July 29, 1851, by the Italian astronomer Annibale de Gasparis. - Naming: Named after Eunomia, a Greek goddess (one of the Horae) who personifies order and law. - Classification: It is the largest member of the Eunomia family, a group of S-type asteroids that likely originated from the same parent body after a massive collision. Mar 26 – Jupiter 4° S of Moon Mar 27 – Longomontanus Ray visible on moon - Iota Cancri colorful double star, named Yuyu on Feb 22, 2026! Mar 28 – Jeweled Handle Visible on Moon Mar 29 – Regulus 4° S of Moon 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Awesome Astronomy - Vanishing Stars & Invisible Galaxies
03/04/2026
Awesome Astronomy - Vanishing Stars & Invisible Galaxies
Paul Hill and Dr. Jenifer “Dr. Dust” Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. March episode part 1. This month it is the curious case of a vanishing star and galaxies that shine no light…plus our monthly skyguide and Jeni has a blocked drain! Also: 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Ask A Spaceman Ep. 267: Is the Universe Older than We Think?
03/03/2026
Ask A Spaceman Ep. 267: Is the Universe Older than We Think?
Hosted by Dr. Paul M. Sutter. How can anyone agree on the age of the Universe? And how can we be so confident if it’s all just a bunch of models? What if the Universe is extra lumpy, does that change anything? 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, 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, 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, Bob C, Stephen A, James R, Allen E, Michael S, Reinaldo A, Sheryl, David W, Chris, Michael S, Erlend A, James D, Karl W, Den K, Edward K, Scott K, Vivek D, Jennifer D, Barbara C, Brad, Azra K, Steve R, Koen G, Scott N, and M D Malahy! 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Astronomy Cast Ep. 784: Pulsar-Powered Science
03/02/2026
Astronomy Cast Ep. 784: Pulsar-Powered Science
Off label uses for Pulsars… Hosted by: Fraser Cain () and Dr. Pamela L. Gay () Streamed live on Feb 16, 2026. Pulsars are dead stars and fascinating in their own right, but astronomers can use their predictable rotation for exploring the cosmos in a series of amazing ways. We can detect gravitational waves, navigate the solar system, test general relativity and find exoplanets. Pulsars are the time keepers of the sky, with their precise ticking allowing researchers to track gravitational waves, find exotic planets, and study weird relativistic effects. Come learn about how pulsars can be used to explore our universe. Image credit: NASA/CXC/ASU/J. Hester et al., HST/ASU/J. Hester et al. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Burry Gowen, Eric Lee, Jeanette Wink, Michael Purcell, Andrew Poelstra, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Joe McTee, Sergey Manouilov, Siggi Kemmler, Sergio Sancevero 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Travelers in the Night Eps. 859 & 860: Powerful Solar Storm & World’s Largest Solar Telescope
03/01/2026
Travelers in the Night Eps. 859 & 860: Powerful Solar Storm & World’s Largest Solar Telescope
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 July & August 2025. Today's 2 topics: - After the Earth the Sun is the most important object for human beings in the Universe. It is the energy source which produces our food and is the source for all of the energy and motion around us except for geothermal and nuclear energy sources. The Sun is normally well behaved the exception being solar storms which can dump incredible amounts of energy onto the Earth. Scientists are working hard to understand solar super storms to enable humans to mitigate the trillions of dollars damage one could cause to our modern electronic technology. - The US National Science Foundation’s Daniel K. Inouye Solar Telescope is the worlds largest solar telescope. It is perched 10,000 feet above sea level on the top of Haleakalā on the Hawaiian island Maui. Its location and 4 meter mirror enables the Inouye to see details in the solar atmosphere as small in diameter as the island of Manhattan. 3D maps of the solar atmosphere produced by the Inouye’s new Visible Tunable Filter will enable humans to put their equipment into a safe mode when necessary. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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The Cosmic Savannah Ep. 79: RADHIANCE Research at the University of Oxford
02/28/2026
The Cosmic Savannah Ep. 79: RADHIANCE Research at the University of Oxford
Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela, Dr. Daniel Cunnama & François Campher With Tumelo Mangena, Leyya Stockenstroom and Ndivhuwo Netshiavha. In this episode, we hear from three postgraduate astronomy students from the University of Cape Town about their worldly adventures during a research trip to the University of Oxford in the UK! PhD student Tumelo Mangena and Masters students Leyya Stockenstroom and Ndivhuwo Netshiavha are part of the RADHIANCE research group led by our very own Jacinta Delhaize! They use world-leading telescopes, like South Africa’s MeerKAT, to examine the light from distant galaxies to try and understand why they have mysteriously changed and evolved over the history of the Universe. Their team name, RADHIANCE, stands for “Radio-Based Analysis and Detection of HI, AGN, star-formatioN, and their Cosmic Evolution” – and they even have a cute logo! 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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EVSN - Earlier Bacterial Life May Have Formed Far Earlier Than Thought
02/27/2026
EVSN - Earlier Bacterial Life May Have Formed Far Earlier Than Thought
From April 15, 2022. An analysis of microscopic features in rocks from the Nuvvuagittuq Supracrustal Belt in Quebec, Canada, which date back between 3.75 and 4.28 billion years, finds evidence of possible microbial life. Plus, a supermassive black hole precursor, temperatures on Neptune, check-ins with various spacecraft, and our weekly What’s Up segment. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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H’ad Astra Historia - Ep. 301 – Take the Gloves Off, Part 1
02/26/2026
H’ad Astra Historia - Ep. 301 – Take the Gloves Off, Part 1
Today we’re talking with Dr. Richard Tresch Fienberg (), astronomer and science communicator, who shares his experiences as Expert Astronomer on Sky & Telescope magazine’s September 2025 Astronomy Tour to “Galileo’s Italy.” Though enjoying retirement, he volunteers his time for the American Astronomical Society as Senior Advisor to the CEO, and is a Senior Contributing Editor with Sky & Telescope. This is the first of two episodes covering our interview. 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: 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Cheap Astronomy - Dear CA Ep. 130: What’s Next?
02/25/2026
Cheap Astronomy - Dear CA Ep. 130: What’s Next?
Hosted by Steve Nerlich. Cheap Astronomy investigates things that haven't happened yet. - Dear Cheap Astronomy: When will the Sun destroy the Earth and can we stop it? - Dear Cheap Astronomy: Will we ever meet aliens? 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Awesome Astronomy - Ozone Hole II Mega-Constellation Boogaloo
02/24/2026
Awesome Astronomy - Ozone Hole II Mega-Constellation Boogaloo
Paul Hill and Dr. Jenifer “Dr. Dust” Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. February Episode Part 2. This episode we chat about the potential ozone hole issue caused by mega constellations, how Jupiter has shrunk and what Aurora would look like when Earth’s poles flip. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Astronomy Cast Ep. 783: Cataclysmic Variable Stars
02/23/2026
Astronomy Cast Ep. 783: Cataclysmic Variable Stars
Hosted by: Fraser Cain () and Dr. Pamela L. Gay () Streamed live on Feb 16, 2026. There are many types of variable stars. Today we’re gonna talk about cataclysmic variable stars, which are the result of a white dwarf stealing material from a companion star. And this whole process makes supervillain Pamela happy. Gravity is the weakest force, but on the scales of stars, it is capable of great violence. In this episode, we look at the wild physics of cataclysmic variables: binary star systems where one star is a predatory compact stellar remnant, while the other is a victimized normal star. Image credit: NASA/CXC/M.Weiss This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Burry Gowen, Eric Lee, Jeanette Wink, Michael Purcell, Andrew Poelstra, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Joe McTee, Sergey Manouilov, Siggi Kemmler, Sergio Sancevero 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Travelers in the Night Eps. 857 & 858: Gila Cliff Dwellings & Vanishing Dark and Quiet
02/22/2026
Travelers in the Night Eps. 857 & 858: Gila Cliff Dwellings & Vanishing Dark and Quiet
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 July 2025. Today's 2 topics: - Recently my Catalina Sky Survey teammate Dr. Hannes Gröller and I traveled to the Gila Cliff Dwellings National Monument to install two night sky meters which will enable this wonderful national treasure to become an international dark sky park. Surrounded by vast tracts of unoccupied public land and having an abundance of clear weather the Gila Cliff Dwellings National Monument and the Cosmic Campground International Dark Sky Sanctuary both in New Mexico are among the best places in the world to view the natural night sky. - Sadly humans seem to be in the process of creating a cosmic land fill which will blot out much of the cosmos. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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ASTROMAN - Solar Eclipse
02/21/2026
ASTROMAN - Solar Eclipse
Episode 14. Our Sun is more than a glowing ball in the sky. It’s a dynamic, ever-changing star at the peak of its solar cycle. In this episode of ASTROMAN: The Dark Sky Guardian, we learn how to safely observe sunspots and solar flares, and why studying solar activity helps protect satellites, power grids, and even predicts auroras. “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 science and arts. Exodus CL Sit, also known as the ASTROMAN, is a transmedia astronomy educator, popular science author, STEAM educator, and science communicator in Hong Kong. He is recently the National Astronomy Education Coordinator (Chair of Hong Kong, China) of the International Astronomical Union and President of Starrix. He was also an International Committee Member of the Dark Sky International, regularly organizing public lectures at the Hong Kong Space Museum and the Hong Kong Science Museum. He was also the author of a popular science book “Decoding the Starry Night: A Guide to Stargazing and Astrophotography”. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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EVSN - The Sky is Falling! Space Junk 411
02/20/2026
EVSN - The Sky is Falling! Space Junk 411
In this episode, we take a closer look at how the increasing number of rockets and satellites going up mean there is also an unfortunate increase in the space junk coming down. We also cover dramatic weather, stars dying and disappearing, and update you on Maven and Paranal Observatory. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Actual Astronomy - Owning 20+ Telescope with Richard Navarette
02/19/2026
Actual Astronomy - Owning 20+ Telescope with Richard Navarette
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. Episode 522. Continuing on with our 2026 resolution we have a special guest listener joining us today. Richard Navarette is a long time amateur astronomer from the San Francisco Bay Area where he has been instrumental in getting people out observing through The Astronomy Connection, well known as “TAC”. Richard has owned 20+ telescopes over the years and while he has enjoyed viewing through many large instruments his personal collection has mostly been focused on portable, affordable gear. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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UNAWE Space Scoop - Cotton Candies Floating in Space?
02/18/2026
UNAWE Space Scoop - Cotton Candies Floating in Space?
Astronomers just found something cool! Typically, most Sun-like stars host planets between the size of Earth and Neptune called ‘super-Earths’ or ‘sub-Neptunes’. These planets often orbit their stars even closer than Mercury orbits our Sun. They’re mostly rocky super-Earths or they have a thick atmosphere and a rocky core and are sub-Neptunes. They’re the most common types of planet found in our Galaxy. And yet, astronomers weren’t sure exactly how these planets formed. So yeah, they found something cool! 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Ask A Spaceman Ep. 266: Is the Universe Made of Math?
02/17/2026
Ask A Spaceman Ep. 266: Is the Universe Made of Math?
Hosted by Dr. Paul M. Sutter. Why is math so effective at describing the Universe? What is reality is made of math? What does it mean for us to be conscious beings in a mathematical structure? 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, 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, 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, Bob C, Stephen A, James R, Robert O, Allen E, Michael S, Reinaldo A, Sheryl, David W, Chris, Michael S, Erlend A, James D, Karl W, Den K, Edward K, Scott K, Vivek D, Barbara C, Brad, Azra K, Steve R, Koen G, and Scott N! 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Astronomy Cast Ep. 782: Luminous Fast Blue Optical Transients
02/16/2026
Astronomy Cast Ep. 782: Luminous Fast Blue Optical Transients
Hosted by: Fraser Cain () and Dr. Pamela L. Gay () Streamed live on Feb 13, 2026. Modern astronomy has found that the Universe can surprise us. Here’s one which astronomers have called Luminous Fast Blue Optical Transients. They’re kinda like supernovas, they’re kind of like gamma ray bursts, but they’re not like them. So what are they? In the distant Universe, are blue light flashes, bright and hard to understand. These objects, uncreatively named "Luminous Fast Blue Optical Transients," are just the kind of puzzle astronomers love. In this episode, we look at their discovery and our current understanding of what they might be. Image credit: NASA, ESA, NSF’s NOIRLab, Mark Garlick, Mahdi Zamani This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Burry Gowen, Eric Lee, Jeanette Wink, Michael Purcell, Andrew Poelstra, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Joe McTee, Sergey Manouilov, Siggi Kemmler, Sergio Sancevero 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Travelers in the Night Eps. 855 & 856: Planetary Defense & Big One
02/15/2026
Travelers in the Night Eps. 855 & 856: Planetary Defense & Big One
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 June & July 2025. Today's 2 topics: - In 2016 NASA created the Planetary Defense Coordination Office to manage the mission of finding, tracking, and studying asteroids and comets which could pose an impact threat to our home planet.The NASA documentary “Planetary Defenders” provides an excellent over view and can be streamed on the internet: - My Catalina Sky Survey teammate Vivian Carvajal was asteroid hunting in the constellation of Cepheus with our small but mighty Schmidt telescope on Mt. Bigelow, Arizona when she discovered 2025 JB1.Fortunately on its current path there is zero probability that 2025 JB1 will impact our home planet in the foreseeable future. Further asteroid hunters continue to search for any other large asteroids which might impact Earth so that mitigation efforts would be effective. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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NOIRLab - Mysterious Metallic Cloud Discovered Orbiting Mystery Object
02/14/2026
NOIRLab - Mysterious Metallic Cloud Discovered Orbiting Mystery Object
Sweeping winds of vaporized metals have been found in a massive cloud that dimmed the light of a star for nearly nine months. This discovery, made with the Gemini South telescope in Chile offers a rare glimpse into the chaotic and dynamic processes still shaping planetary systems long after their formation. In this podcast, Dr. Nadia Zakamska describes the discovery of this object, stemming from a mysterious dimming of a star, to the analysis of the gas cloud. Bios: - Rob Sparks is in the Communications, Education and Engagement group at NSF’s NOIRLab in Tucson, Arizona. - Dr. Nadia Zakamska was born and raised in Russia and received a Masters degree from Moscow Institute of Physics and Technology. She came to the United States in 2001 to pursue graduate education in Astrophysics in Princeton University. After her Ph.D., she was a postdoctoral researcher at the Institute for Advanced Study in Princeton and at Stanford University before moving to the Johns Hopkins University for a faculty position in 2011. She is now a professor in the Department of Physics and Astronomy, with a wide range of research interests across many areas of astrophysics. She lives in Baltimore with her husband and four children. NOIRLab social media channels can be found at: 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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EVSN - Galaxy Mergers Trigger Black Hole Growth
02/13/2026
EVSN - Galaxy Mergers Trigger Black Hole Growth
From May 21, 2020. Join us today as we discuss the impressive work by an undergraduate student who figured out how galaxy mergers influence the growth of supermassive black holes. We talk about a gigantic galaxy found in the early universe. And finally, we look at amazing images of a planet being formed around a distant star. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Guide To Space - What Did Cassini Teach Us? Remembering Cassini and Saying Goodbye
02/12/2026
Guide To Space - What Did Cassini Teach Us? Remembering Cassini and Saying Goodbye
From March 8, 2017. In just a few months, NASA's Cassini spacecraft is going to die, crashing into the planet Saturn. Let's look back across the mission's history. What were the highlights? What did we learn? Team: Fraser Cain - @fcain / frasercain@gmail.com Karla Thompson - @karlaii Chad Weber - weber.chad@gmail.com Ask me my favorite object in the Solar System, especially to see through a telescope, and my answer is always the same: Saturn. Saturn is this crazy, ringed world, different than any other place we’ve ever seen. And in a small telescope, you can really see the ball of the planet - you can see its rings. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Cheap Astronomy - Dear CA Ep. 129: More Rocks
02/11/2026
Cheap Astronomy - Dear CA Ep. 129: More Rocks
A podcast about rocks, big and small. Dear Cheap Astronomy – What’s Psyche really like? Psyche is an asteroid in the asteroid belt and apparently a very metal rich one, which makes it a prospecting target for budding asteroid miners. Pysche is also a spacecraft, launched on October 13, 2023. We’re recording this episode about one month after launch when it’s already over 15 million km from Earth – and its destination? Yep, Psyche – the asteroid. Dear Cheap Astronomy – How is Mars Sample Return mission going? Here at Cheap Astronomy we’ve often said that landing on Mars is one thing – getting off it again is quite another. But this is the intention of the Mars Sample Return mission – which has already commenced insofar as the Perseverance rover is currently collecting samples for it – some of which have dropped for later retrieval, while others remain stored within the rover. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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Deep Astronomy - Discoveries of Webb Space Telescope Ep 3: The Flares of Sagittarius A*, Our Galaxy's Black Hole
02/10/2026
Deep Astronomy - Discoveries of Webb Space Telescope Ep 3: The Flares of Sagittarius A*, Our Galaxy's Black Hole
From April 14, 2025. Astronomers using the JWST have made direct observations of the black hole at the center of our galaxy: Sagittarius A*. These observations are possible because the Webb Space Telescope can peer through the dust at the center of our galaxy using infrared light. These observations surprised astronomers. 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 show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just !) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. Visit us on the web at or email us at .
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