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 AstronomyEquatorial Sky Guide - May 2026
Hosted by Avivah Yamani, our Director. It's time for a Blue Moon this year! And observers also have the chance to enjoy planetary dances with the Moon and…
The 365 Days of AstronomyEVSN - After Hours: Launching The Small(er) Things With Exolaunch CEO Robert Sproles
From April 30, 2026. As commercial space becomes a more and more mature industry, we're seeing new needs emerge. Front and the center is the need for someone -…
The 365 Days of AstronomyGuide To Space - First Ever Picture of a Baby Planet!
https://www.youtube.com/watch?v=Xryd9cC8ZWU Hosted by Fraser Cain. From Jul 4, 2018. For the first time ever, astronomers have captured a direct image of a…
The 365 Days of AstronomyAwesome Astronomy - Artemis Chat
April Part II. Paul Hill & Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. This month what else can we chat…
The 365 Days of AstronomyCheap Astronomy - Dear CA #134: Testing Asumptions
Taking nothing for granted. Hosted by Steve Nerlich. Dear Cheap Astronomy – Is space really empty? Well, the universe is filled with stars, planets and…
The 365 Days of AstronomyAstronomy Cast Ep. 791: Chang'e Sample Return
https://www.youtube.com/watch?v=Wa1p6AOfQBc Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed live on Apr 20, 2026. Last week…
The 365 Days of AstronomyTravelers in the Night Eps. 875 & 876: Newly Discovered Crater & Neighborhood Traffic
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 AstronomyThe Cosmic Savannah - Ep. 81: One Last Burst: Gamma Rays & Afterglows
Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela, Dr. Daniel Cunnama & François Campher In this episode, Jacinta chats with Dr. Simon de Wet about the…
The 365 Days of AstronomyEVSN - To Artemis, With Love
From April 22, 2026. Season 4, episode 15. This is EVSN's love letter to the Artemis II mission. We've added a new way to donate to 365 Days of Astronomy to…
The 365 Days of AstronomySpace Stories - Astronomy Words: The Constellations
Hosted by Avivah Yamani, our Director. What are constellations? Explore their history, science, and cultural meanings across civilizations, including how we…
The 365 Days of AstronomyAsk A Spaceman - Ep. 270: Is the Universe…Defective?
Hosted by Dr. Paul M. Sutter. What did the Universe do to make so many defects? What happens when they get trapped? And could they be hiding right in front of…
The 365 Days of AstronomyAstronomy Cast Ep. 790: Meteorites From Other Worlds
https://www.youtube.com/watch?v=WGx1NvLO8FA Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live April 17, 2026. Even…
The 365 Days of AstronomyTravelers in the Night Eps. 373 & 374: Tracking 3I/Atlas & Good Night at Bok
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 AstronomyActual Astronomy - 12 Months of Messier
Episode 531. Just a reminder for people to write in with their questions for David Nagler. Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in…
The 365 Days of AstronomyEVSN - Supervolcanoes: Erupt, Refill, Repeat
From Wednesday, April 15, 2026. This week, in the first of our new shorter and more frequent episodes, we are going to take a look at the interplay of plate…
The 365 Days of AstronomyGuide To Space - Bringing Mars To Earth
https://www.youtube.com/watch?v=dmtCX-TBgfE The Plans For a Mars Sample Return Mission. Hosted by Fraser Cain. From Aug 28, 2019. One of the great…
The 365 Days of AstronomyCheap Astronomy - Dear CA # 133: Why It's Always C
Cheap Astronomy investigates why light moves at light speed in a vacuum. Hosted by Steve Nerlich. Shining a light! Dear Cheap Astronomy – Why does a photon…
The 365 Days of AstronomyDeep Astronomy - Webb's Deepest Field in 4K - Discoveries of Webb Space Telescope: Ep. 5
https://www.youtube.com/watch?v=JBHzV4y7G5A Hosted by Tony Darnell. From May 23, 2025. The COSMOS-Web dataset represents the deepest look into our universe…
The 365 Days of AstronomyAstronomy Cast Ep. 161: Launch Facilities
http://www.astronomycast.com/archive/ From October 26, 2009. Launching a rocket into space requires a big effort on the ground. Space agencies have built up…
The 365 Days of AstronomyTravelers in the Night Eps. 871 & 872: New Mars Trojan & Climate Ignored
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 AstronomyNOIR Lab - An Extremely Rare Ancient Star
Astronomers have discovered one of the most chemically primitive stars ever identified — an ancient stellar relic that preserves the chemical imprint of the…
The 365 Days of AstronomyEVSN - Science in Pairs & Moon Plans Redux
From April 1, 2026. No foolin'! Once again, we're going to attempt to get you up to date with what is going down at NASA. In addition to NASA updates, we have…
The 365 Days of AstronomyUNAWE Space Scoop - A Rule-Breaking Supermassive Black Hole
https://spacescoop.org/en/scoops/2602/a-rule-breaking-supermassive-black-hole/ Astronomers have spotted a supermassive black hole, or SMBH, that is breaking…
The 365 Days of AstronomyAwesome Astronomy - Gravitational Musing & Nuclear Cruising
Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. This episode Paul and Jeni look at a possible…
The 365 Days of AstronomyAsk A Spaceman - Ep. 269: Why Are Interstellar Objects So Weird?
Hosted by Dr. Paul M. Sutter. What makes the interstellar comet 3I/Atlas so weird? Why are we finding so many interstellar visitors recently? How are they…
The 365 Days of AstronomyAstronomy Cast Ep. 789: What Happens When a Planet's Star Dies
https://www.youtube.com/watch?v=Me0MNCIuLs8 Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed live on Mar 30, 2026. A star like…
The 365 Days of AstronomyTravelers in the Night Eps. 869 & 870: Taurid Resonant Swarm & Satellite Ashes
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 - April
Hosted by Avivah Yamani, our Director. What's up in the equatorial sky this month? April 2026 brings a spectacular alignment of Mercury, Mars, and Saturn…
The 365 Days of AstronomyEVSN - On Background - Comets, the Basics
From Wednesday, March 25, 2026. In this special episode, funded by the National Science Foundation, we're taking a break from the headlines to share the…
The 365 Days of AstronomyActual Astronomy - The Observer's Calendar for April 2026
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 AstronomyGuide To Space - Project Artemis: NASA's Plans To Return To The Moon By 2024
https://www.youtube.com/watch?v=FCqU0nz6iFU Hosted by Fraser Cain. From May 21, 2019. On Monday, May 13, 2019, NASA declared: "We are going to the Moon to…
The 365 Days of AstronomyHad Astra Historia - Ep 302 – Take the Gloves Off, Part II
Today's guest: Dr. Richard Tresch Fienberg, astronomer and science communicator, recently served as the Expert Astronomer for Sky & Telescope's September 2025…
The 365 Days of AstronomyAstronomy Cast Ep. 788: Life's Molecules Form in Space
https://www.youtube.com/watch?v=cJNpipCncKA Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Mar 23, 2026. The…
The 365 Days of AstronomyTravelers in the Night Eps. 867 & 868: Daytime Fireball & Inside Venus
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 AstronomyEVSN - Pretty Pictures & Ugly Artemis News
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…
The 365 Days of AstronomyCosmic Perspective - Don Pettit Interview
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…
The 365 Days of AstronomyCheap Astronomy - Dear CA Ep. 132: Mining Again
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…
The 365 Days of AstronomyAwesome Astronomy - Artemis II Helium Boogaloo
Paul Hill & Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Our chatty astrowaffle episode this month (March…
The 365 Days of AstronomyAstronomy Cast Ep. 787: Evolved Stars (They're not dead yet!)
https://www.youtube.com/watch?v=jY1_q9a0UFc Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Mar 16, 2026. Main…
The 365 Days of AstronomyTravelers in the Night Eps. 865 & 866: New Potentially Hazardous Asteroid & Interstellar 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 - Light Pollution and the Fight to Bring Back the Stars
In this episode of Dark Sky Guardian, we learn how thoughtful lighting can reduce glare, save energy, protect wildlife, and restore our connection to the night…
The 365 Days of AstronomyEVSN - Daily Space Planets, Stars & Death to Dark Energy
https://cosmoquest.org/x/dailyspace/2020/01/07/planets-stars-and-death-to-dark-energy/ From January 7, 2020. The Hubble Space Telescope continues to give us…
The 365 Days of AstronomyActual Astronomy - A Listener's Dream Observatory
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 AstronomyCheap Astronomy - Dear CA 131: What's The Point?
Hosted by Steve Nerlich. Cheap Astronomy asks what's the point and then gets some sunshine. Dear Cheap Astronomy – Did the Universe start from a single point?…
The 365 Days of AstronomyAsk A Spaceman Ep. 268: What are Little Red Dots?
Hosted by Dr. Paul M. Sutter. What do we find when we push the James Webb Space Telescope to its limits? Are Little Red Dots newborn galaxies or old black…
The 365 Days of AstronomyAstronomy Cast Ep. 786: Wolf-Rayet Stars
https://www.youtube.com/watch?v=g_Y-ST_az9c Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed live on Mar 9, 2026. You think…
The 365 Days of AstronomyTravelers in the Night Eps. 863 & 864: Space Elevator & Lunar Debris
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 - Results From Six Years of the Dark Energy Survey
The Dark Energy Survey Collaboration collected information on hundreds of millions of galaxies across the Universe using the U.S. Department of…
The 365 Days of AstronomyEVSN - Climate Change Melts Glaciers, Greens the Arctic
From Sep 9, 2022. As global temperatures rise, Earth observations show that glaciers are retreating and ice sheets are melting everywhere from Greenland to…
The 365 Days of AstronomySpace Stories - Astronomy Words: Magnitude - Why Bright Stars Have Small Numbers
Hosted by our Director, Avivah Yamani. Explore the story behind astronomical magnitude, from Hipparchus and Ptolemy to modern photometry, and learn why…
The 365 Days of AstronomyGuide To Space - Project Dragonfly. A Laser-Powered Probe to Alpha Centauri
https://www.youtube.com/watch?v=598UtgxFd1E From Jan 6, 2019. The distances between stars are so vast, it's hard to wrap your mind around it. Even our far…
The 365 Days of AstronomyDeep Astronomy - The Magnificent Carina Nebula in 4K
https://www.youtube.com/watch?v=y-Uoy4BCs24 Hosted by Tony Darnell. From May 16, 2025. Join this channel to get access to special content including…
The 365 Days of AstronomyAstronomy Cast Ep. 785: Magnetars
https://www.youtube.com/watch?v=iT3Pxmo1YLc Hosted by: Fraser Cain (@frasercain ) and Dr. Pamela L. Gay (@CosmoQuest ) Streamed live March 6, 2026. Magnetars…
The 365 Days of AstronomyTravelers in the Night Eps. 861 & 862: Big Bear Observatory & New Planet 9 Search
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 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 365 Days of AstronomyEVSN - 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…
The 365 Days of AstronomyActual 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…
The 365 Days of AstronomyAwesome 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…
The 365 Days of AstronomyAsk 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…