The 365 Days of Astronomy
Hosted by Fraser Cain. From May 21, 2019. On Monday, May 13, 2019, NASA declared: “We are going to the Moon to stay” by 2024. It’s an exciting announcement; the return to a place humans haven’t set foot on in more than 45 years. A serious goal that will test the ability of technology and engineering, as well as the bravery of the men and women who will carry out this task. But we’ve also heard announcements like this before, many times. How will the mission come together? What are the risks? What’s new this time? We've added a new way to donate to 365 Days of...
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Today’s guest: Dr. Richard Tresch Fienberg, astronomer and science communicator, recently served as the Expert Astronomer for Sky & Telescope’s September 2025 Astronomy Tour. In our interview, we explore “Galileo’s Italy” with him. 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 second of two episodes covering our interview. H’ad astra historia is the official podcast for the Historical Astronomy Division () of the American...
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Hosted by: Fraser Cain ( ) and Dr. Pamela L. Gay ( ) Streamed live on Mar 23, 2026. The theory of evolution how life takes on its wildly different forms. But how did life get started in the first place? It appears the Universe has been making life’s molecules in space for billions of years, setting up the conditions for life… everywhere? One of humanity's fundamental questions is "where does life come from." We can't answer that question, but we can tell you where some of the stuff of life came from. This show is supported through people like you on...
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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: - Dr. Bill Cooke of NASA’s Meteoroid Environment Office reports that on June 26, 2025 shortly after noon a beachball sized meteoroid traveling at approximately 30,000 miles per hour broke up about 27 miles above the town of West Forrest, Georgia. - Astronomers have discovered some 1.4 million asteroids. Approximately 35,000 of these space rocks come near Earth. Less than 40 of...
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From March 18, 2026. This episode went through a lot of rewrites as breaking news kept breaking our hearts. Artemis is still on, but there are delays and cancellations. Before we face that, let’s look at some pretty pictures and remember the universe is pretty even when our Earthly-timeline is not. JWST Wolf-Rayet stars pix: Exposed Cranium Nebula: 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...
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Hosted and sponsored by Andy Poniros. Veteran of more than 590 days in space on Shuttle, Soyuz, & ISS missions NASA Astronaut, Don Pettit. Don discusses his space missions, the upcoming Artemis II mission, as well as his amazing inventions & photography from space. 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...
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Hosted by Steve Nerlich. Bringing it home. Cheap Astronomy digs in to asteroid mining. Dear Cheap Astronomy – Are rubble pile asteroids easier to mine? Rubble pile asteroids are a collection of rocks that have accreted together under their mutual gravity, but the object they form isn’t massive enough for gravity to compress it into one unified object. Instead, the rocks that gather together remain as individual rocks. So, from a mining perspective there’s an advantage in that you can just pick up those individual rocks without needing drilling or explosives. Dear Cheap...
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Paul Hill & Dr. Jenifer “Dr. Dust” Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Our chatty astrowaffle episode this month (March Part 2) is all about the Artemis re-jig and what the future now holds for the program. Oh, and an update on Jeni’s drains. Cafuego’s Jellyfish: 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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Hosted by: Fraser Cain ( ) and Dr. Pamela L. Gay ( ) Streamed live on Mar 16, 2026. Main sequence stars spend most of their time being… normal. Fusing hydrogen into helium in their cores. Producing radiation. But as their stockpiles of hydrogen run out they switch to other fuels, starting to climb the ladder of the periodic table of elements. And this is when things get weird. As we get more and more observations of the cosmos, our understanding gets more detailed. In this episode we look at all the ways a star can die and the updates that we've learned in the past 20 years of Astronomy...
info_outlineOff label uses for Pulsars…
https://www.youtube.com/watch?v=4XMJBiJao6M
Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)
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: 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.