Shows / The 365 Days of Astronomy
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.
Episodes
The 365 Days of AstronomySpace Stories - Let's Look at the Weirdest Corners of Space!
https://www.youtube.com/live/H0qVigc9gnQ Hosted by: Dr. Pamela L. Gay (@CosmoQuest) Book Talk with Dr. Kimberly K. Arcand & Megan Watzke. Streamed live on Feb…
The 365 Days of AstronomySpace Stories - Astronomy Words: Metal
Written & hosted by our Director, Avivah Yamani. Why do astronomers call oxygen and carbon metals? Explore how stars created the elements that formed planets…
The 365 Days of AstronomyCheap Astronomy - Dear CA #142: Knowns & Unknowns
Hosted by Steve Nerlich. Who knew? Dear Cheap Astronomy – Do gravitons exist? Once again we're dealing with something hypothetical here – so much like virtual…
The 365 Days of AstronomyAstronomy Cast Ep. 806: Mission Tech Series: Thrusters
https://www.youtube.com/watch?v=rK6w8ZHm8UM Streamed live 18 Oct 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Today we…
The 365 Days of AstronomyTravelers in the Night Eps. 387 & 388: Long Winter Nights & Greg's Comet
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomyGuide To Space - What Happens When Black Holes Collide? Black Hole Mergers Across The Universe
https://www.youtube.com/watch?v=vvSNWnHZpjc Hosted by: Fraser Cain (@frasercain) From Oct 4, 2016. Black holes are the most impressive objects in the Universe…
The 365 Days of AstronomyEVSN - Repainted Rose, Worlds Colliding & White Dwarfs of Unusual Size
From October 21, 2026. Hosted by Dr. Pamela L. Gay (@CosmoQuest) This week we look at the weird results in space science. From looking at how wildly different…
The 365 Days of AstronomyCheap Astronomy - Dear CA #141: Sorting The Universe
Hosted by Steve Nerlich. A podcast of sorts… Cheap Astronomy gets organized! Dear Cheap Astronomy – How are asteroids organized? The large majority of…
The 365 Days of AstronomyAwesome Astronomy - The Nancy Grace Roman Space Telescope
October Part 2. Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Jeni gives us the low down on the…
The 365 Days of AstronomyAsk A Spaceman Ep. 282: What Happens When You Shine a Light on Nothing?
Light Up Empty Space! Hosted by Dr. Paul M. Sutter. How does the vacuum interact with light? Is it possible to use light to create something from nothing? And…
The 365 Days of AstronomyAstronomy Cast Ep. 805: Mission Tech Series - Gyroscopes & Servos
https://www.youtube.com/watch?v=mcn6f_PE14o Spinney things! Streamed live 18 Oct 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)…
The 365 Days of AstronomyTravelers in the Night Eps. 385 & 386: New Aten & Silent ET
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomyAstroMan - G Is For Galileo
Galileo turned the telescope skyward and transformed astronomy, revealing lunar mountains, sunspots, Jupiter's moons, and a Universe far larger than imagined…
The 365 Days of AstronomyActual Astronomy - Saturn at Opposition
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their…
The 365 Days of AstronomyEVSN - Luminous Kilonova Challenges Gamma-ray Burst Theories
From November 2020. The brightest kilonova ever was detected and challenges current gamma-ray burst models. Plus, the history of water on both Venus and Mars…
The 365 Days of AstronomyGuide To Space - Universe Today News: NASA Selects GIMLI to Search the Marius Lunar Pit for a Potential Lunar Base Site
https://www.universetoday.com/articles/nasa-selects-gimli-to-search-the-marius-lunar-pit-for-a-potential-lunar-base-site Recorded by our editor, Richard Drumm…
The 365 Days of AstronomyAwesome Astronomy - Extra: The Hubble Tuning Fork & Citizen Science
Paul Hill hosts solo! Damien Phillips, John Wildridge and Dustin Ruoff produce. In this podcast extra episode we talk to Dr. Karen Masters, Associate Professor…
The 365 Days of AstronomyAstronomy Cast Ep. 804: Mission Tech Series: Fairings, Docking & Airlocks
https://www.youtube.com/watch?v=GhkGOIAhBWc Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed live on Oct 3, 2026. Mission Tech…
The 365 Days of AstronomyTravelers in the Night Eps. 383 & 384: ET's Cigar & Dry Sands
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomyNOIRLab - First Magnetar Progenitor
Neutron stars, the compact remains of a massive star following a supernova explosion, are the densest matter in the Universe. Some neutron stars, known as…
The 365 Days of AstronomyEVSN - Cloudy With a Chance of Brown Dwarfs: Terrestrial, Exo & Space Weather
From September 23, 2026. This week we're doing a weather check. No, really. Let's talk about the weather! All of them! We've added a new way to donate to 365…
The 365 Days of AstronomyEquatorial SkyGuide - October SkyGuide
Hosted by our Director, Avivah Yamani. Explore October 2026's equatorial skies as we have Saturn at opposition, Mercury at dusk, Orionid meteors, and the…
The 365 Days of AstronomyAwesome Astronomy - Baby Planet, the New Crater & the Decagon
October Part 1. Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. We dive into autumn with a baby…
The 365 Days of AstronomyAsk A Spaceman Ep. 281: What Makes the Scattered Disk So Wild?
Solar System Badlands! Hosted by Dr. Paul M. Sutter. How did the scattered disk of the solar system form? What kins of strange objects roam those badlands? And…
The 365 Days of AstronomyAstronomy Cast Ep. 803: Mission Tech Series: Engines & Stages
https://www.youtube.com/watch?v=87imhw2ljNU Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed on October 3, 2026. Today our…
The 365 Days of AstronomyTravelers in the Night Eps. 381 & 382: Red Dwarf Planets & Fireball II
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomySpace Stories - Astronomy Words: Dwarf Planet
Hosted by our Director, Avivah Yamani. Why is Pluto a dwarf planet? Discover how new findings changed the definition of a planet—and our perspective on the…
The 365 Days of AstronomyEVSN - All Things Solar System Evolution: Planet Formation, Composition & Asteroid Deflection
Hosted by: Dr. Pamela L. Gay (@CosmoQuest) From February 20, 2020. In today's episode we look at a variety of new results related to observing how planetary…
The 365 Days of AstronomyActual Astronomy - October Observer's Calendar
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their…
The 365 Days of AstronomyAwesome Astronomy - An American Astronomer in Cwmdu
September Part 2. Dustin Ruoff (!!!) and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Live from AstroCamp!…
The 365 Days of AstronomyCheap Astronomy - Dear CA Ep. 140: Objects & Objectives
Objective: objects! Hosted by Steve Nerlich. Dear Cheap Astronomy – How often does the solar system capture or eject things? The first evidence that stellar…
The 365 Days of AstronomyAstronomy Cast Ep. 802: Mission Tech Series: Rocket & Spacecraft 411
https://www.youtube.com/watch?v=hW_eLqrmjZ4 Streamed live on Sep 21, 2026 Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Today we…
The 365 Days of AstronomyTravelers in the Night Eps. 379 & 380: Well Done & Odd Ball
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomyGuide To Space - Universe Today News: BepiColombo Successfully Begins Its Final Descent To Mercury
https://www.universetoday.com/articles/bepicolombo-successfully-begins-its-final-descent-to-mercury Written by Andy Tomaswick - September 09, 2026. Read by our…
The 365 Days of AstronomyEVSN - No Good, Very Bad News and Some Planetary Palate Cleansers
From September 16, 2026. Join us as we bounce between the geology behind the recent landslide in Nepal and Tibet, the joy of Saturn's south pole forming a…
The 365 Days of AstronomyH'ad Astra Historia - Ep. 305: You're So Predictable
Hosted by Loretta Cannon. Today's 'guest' is the planet Neptune. I'm telling the story of the discovery of Neptune 180 years ago in September, 1846. It was…
The 365 Days of AstronomySpace Stories - Astronomy Words: Light Year
Hosted by our Director, Avivah Yamani. A light-year measures distance, not time, but it also lets us see the past. Discover how light turns every telescope…
The 365 Days of AstronomyAsk A Spaceman Ep. 280: Wait, So We Can Steal Energy From Black Holes?
Black Hole Power! Hosted by Dr. Paul M. Sutter. What is frame dragging? How do we measure it? And how can we turn this into a method for extracting energy from…
The 365 Days of AstronomyAstronomy Cast Ep. 801: The Beginning & End of Everything - Part 2
https://www.youtube.com/watch?v=jFzHdB1nM9Y - With credits added. Streamed live on Sep 7, 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay…
The 365 Days of AstronomyTravelers in the Night Eps. 377 & 378: Fission Rocket & Enormous Visitor
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomyAstroman - F Is For Full Moon
Exodus talks about Moon phases. "ASTROMAN: the Dark Sky Guardian" is a podcast channel that aims to explore popular science in multiple disciplines and…
The 365 Days of AstronomyEVSN - Betelgeuse: Smaller & Closer Than Previously Thought… What?
From October 19, 2020. Hosted by: Dr. Pamela L. Gay (@CosmoQuest) Today's top story brings back our favorite red giant star, Betelgeuse. A new paper published…
The 365 Days of AstronomyActual Astronomy - Top Ten Techniques for Buying Used Telescope Gear
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their…
The 365 Days of AstronomyDeep Astronomy - The Triangulum Galaxy: The Most Distant Naked Eye Object
https://www.youtube.com/watch?v=VmzJj2i81H0 Hosted by Tony Darnell. From Nov 7, 2017. Have you ever wondered what the most distant object we can see with our…
The 365 Days of AstronomyCheap Astronomy - Dear CA # 139: Clearing the Neighborhood
Saving the world on a tight budget. Hosted by Steve Nerlich. Dear Cheap Astronomy – Can we clear all the PHOs from around Earth? A key feature of Cheap…
The 365 Days of AstronomyAstronomy Cast Ep. 800: The Beginning & End of Everything - Part 1
https://www.youtube.com/watch?v=CDFCqCj0ofk Streamed live on Sep 7, 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) This show is…
The 365 Days of AstronomyTravelers in the Night Eps. 375 & 376: Extraterrestrial Whales & Tiny Space Rock
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomyNOIRLab - The DESI Legacy Imaging Surveys
Hosted by Rob Starks. The newest DESI Legacy Imaging Surveys map, 13 years in the making, covers three-quarters of the sky and catalogs nearly four billion…
The 365 Days of AstronomyEVSN - Newly Discovered Solar System Object is 'Farfarout'
From February 15, 2021. A newly found object nearly four times farther out from the Sun than Pluto now holds the record for the farthest observed in our solar…
The 365 Days of AstronomyGuide To Space - Universe Today News: 7 Stage Journey Reveals How Falling Space Rocks Survive Air
https://www.universetoday.com/articles/7-stage-journey-reveals-how-falling-space-rocks-survive-air By Laurence Tognetti, MSc - August 31, 2026. Recorded by our…
The 365 Days of AstronomyBig Impact Astronomy - Inspiring the World Through Astronomy With Dr. Kelly Blumenthal
https://www.youtube.com/watch?v=R6lOpIWbly4 From July 23, 2026. Hosted by Mike Simmons. Episode 19. https://astro4equity.org - Visit our website! Dr. Kelly…
The 365 Days of AstronomyAsk A Spaceman Ep. 279: What Can We Actually Find on an Exoplanet?
Mapping Alien Worlds! Hosted by Dr. Paul M. Sutter. Just how hard are exoplanets observations? What kind of telescope will it take to find life? And how much…
The 365 Days of AstronomyAstronomy Cast Ep. 53: Astronomy in Science Fiction
From September 10, 2007. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) This is a very different episode of Astronomy Cast. As we…
The 365 Days of AstronomyTravelers in the Night Eps. 373 & 374: Plant Companionship & Earth's Pet Rock
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at…
The 365 Days of AstronomyEquatorial Sky Guide - September
Hosted by our Director, Avivah Yamani. September's equatorial sky features Venus, Saturn, Mars, Jupiter, dark Milky Way nights, the September equinox, and a…
The 365 Days of AstronomyEVSN - On Background: The Anatomy of a Comet
Hosted by: Dr. Pamela L. Gay (@CosmoQuest) From September 1, 2026. In this special episode, funded by the National Science Foundation, we're taking a break…
The 365 Days of AstronomyActual Astronomy - The Observer's Calendar for September
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their…
The 365 Days of AstronomyAwesome Astronomy - Holy Flipping Galaxies Batman!
September Part 1! Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. So it turns out… -The Milky Way…
The 365 Days of AstronomyDeep Astronomy - The Most Distant Galaxy Ever Measured
https://www.youtube.com/watch?v=frcLSXuzzyY Hosted by Tony Darnell. From October 24, 2010. On Oct 19, 2010, astronomers announced the measurement of a redshift…
The 365 Days of AstronomyAstronomy Cast Ep. 8: Meteor Showers. Yes, the Sky is Falling!
http://www.astronomycast.com/archive/ Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) From October 30, 2006. Dress warmly, gather some…