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PODCAST

The 365 Days of Astronomy

365DaysOfAstronomy.org

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.

science astronomy

All Episodes

37:13

Astronomy Cast Ep. 803: Mission Tech Series: Engines...

The 365 Days of Astronomy ·

2026/10/05

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 series continues with our deep dive into rockets, their engines & stages. We fall into the tyranny of the rocket equation and discover what it takes to escape Earth's gravity and head off into deep space. We removed all ads from the show. We need to get to 1,500 patrons to keep it this way. We need your support! We've added a new way to

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06:05

Travelers in the Night Eps. 381 & 382: Red Dwarf...

The 365 Days of Astronomy ·

2026/10/04

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org From March 2026. Today's 2 topics: - Astronomers continue to be delighted when they discover an Earth sized planet. Scientists were thus very disappointed when the red dwarf star hosting the nearest such planet, Proxima Centauri b some 4.2 light years away, turns out to have the nasty habit of

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05:57

Space Stories - Astronomy Words: Dwarf Planet

The 365 Days of Astronomy ·

2026/10/03

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 Solar System. 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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10:50

EVSN - All Things Solar System Evolution: Planet...

The 365 Days of Astronomy ·

2026/10/02

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 systems form, where planet ends up in solar system's (including in our own Jupiter's atmosphere!), and how rocks get flung at Earth even today. Ice volcanoes videos etc.: https://www.youtube.com/shorts/X3x9mOkN240 https://www.youtube.com/watch?v=HB27iJtxZrA https://www.thehotelsaugatuck.com/blog/ice-volcanoes-and-ice-balls-oval-beach We've

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37:35

Actual Astronomy - October Observer's Calendar

The 365 Days of Astronomy ·

2026/10/01

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. actualastronomy@gmail.com (Times in Eastern) - Oct 1: Moon at perigee; Beta Cephei colorful double star - Oct 2: Venus stationary; 41 Aquarii colorful double star; R Fornacis carbon star - Oct 3: Last Quarter Moon (9:25); Gegenschein high in S at midnight; 3 Cephei colorful double star - Oct 4: Saturn at opposition; Lunar Curtis

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59:36

Awesome Astronomy - An American Astronomer in Cwmdu

The 365 Days of Astronomy ·

2026/09/30

September Part 2. Dustin Ruoff (!!!) and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Live from AstroCamp! It's Chatty McChatty time again! Dustin pops over the pond for a visit to AstroCamp! 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

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14:43

Cheap Astronomy - Dear CA Ep. 140: Objects & Objectives

The 365 Days of Astronomy ·

2026/09/29

Objective: objects! Hosted by Steve Nerlich. Dear Cheap Astronomy – How often does the solar system capture or eject things? The first evidence that stellar systems might eject things were observations of rogue planets knocked out of their systems due to gravitational interactions and now populating interstellar space. For every rogue planet knocked out its system there are likely thousands of smaller objects also knocked out that are just too small for us to observe. We call this rogue population

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33:03

Astronomy Cast Ep. 802: Mission Tech Series: Rocket &...

The 365 Days of Astronomy ·

2026/09/28

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 begin a new series on rockets and spacecraft, dealing with each of their components. It's a big job, so it'll take us a bunch of episodes to get through. Today let's do an introduction about what we're gonna talk about in this series: rockets from tip to tail, soup to nuts. We've added a new way to donate to 365 Days of Astronomy to support

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06:05

Travelers in the Night Eps. 379 & 380: Well Done &...

The 365 Days of Astronomy ·

2026/09/27

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org From March 2026. Today's 2 topics: - Once every 1,435 days , a 780 foot diameter space rock, 2017 TC1, that my Catalina Sky Survey teammate Carson Fuls discovered makes an annihilation defying close approach to our star. At it's nearest point to the Sun, Carson's well done space rock is traveling

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07:29

Guide To Space - Universe Today News: BepiColombo...

The 365 Days of Astronomy ·

2026/09/26

https://www.universetoday.com/articles/bepicolombo-successfully-begins-its-final-descent-to-mercury Written by Andy Tomaswick - September 09, 2026. Read by our editor, Richard Drumm. The latest mission to the innermost planet in the solar system hit a milestone last week. After an eight year journey, BepiColombo finally separated from its propulsion stage to set itself up for an orbital insertion to Mercury. Taking place on September 3rd, the separation, which is part of a much longer series of

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27:02

EVSN - No Good, Very Bad News and Some Planetary...

The 365 Days of Astronomy ·

2026/09/25

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 decagon, the frustration of both US and Russian space programs having launch capacity issues, and the good news of BepiColombo getting ready to enter Mercury's orbit. 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

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35:06

H'ad Astra Historia - Ep. 305: You're So Predictable

The 365 Days of Astronomy ·

2026/09/24

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 initially identified using mathematics rather than a telescope. This is a story of missed opportunities, undisclosed data, a bit of professional rivalry, and a controversy that some still argue today. H'ad astra historia is the official podcast for the Historical Astronomy Division of the American Astronomical Society. We're here to share

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06:05

Space Stories - Astronomy Words: Light Year

The 365 Days of Astronomy ·

2026/09/23

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 into a cosmic time machine. 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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29:07

Ask A Spaceman Ep. 280: Wait, So We Can Steal Energy...

The 365 Days of Astronomy ·

2026/09/22

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 rotating black holes? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books Keep those questions about space, science, astronomy, astrophysics,

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38:06

Astronomy Cast Ep. 801: The Beginning & End of...

The 365 Days of Astronomy ·

2026/09/21

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 (@CosmoQuest) This show is supported through people like you on Patreon.com/AstronomyCast Today we do the sequel to our 2-part series. We jump to the end of the Universe, and all the major moments that will occur from now until the heat death of the Universe. The end of everything. - The fate & future of the Milky Way - Cosmic isolation - The

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06:05

Travelers in the Night Eps. 377 & 378: Fission Rocket...

The 365 Days of Astronomy ·

2026/09/20

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org From February 2026. Today's 2 topics: - To get an idea of the energy involved in a rocket launch, the NASA Saturn V, moon rocket, fully fueled on the launch pad contained the chemical energy of 2,000 pounds of TNT. This old technology could carry us to Mars and back on missions that would last

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09:40

Astroman - F Is For Full Moon

The 365 Days of Astronomy ·

2026/09/19

Exodus talks about Moon phases. "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 Chun-Long Sit, also known as the ASTROMAN, is a transmedia astronomy educator, popular science author, STEAM

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16:02

EVSN - Betelgeuse: Smaller & Closer Than Previously...

The 365 Days of Astronomy ·

2026/09/18

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 in The Astrophysical Journal (ApJ) with lead author Dr. Meridith Joyce looks at Betelgeuse as a pulsating variable star and uses atmospheric physics to bring us new insights on what the red giant is up to. This paper combines new observations with new computer models to derive the star's mass and size from its outward behavior in much the

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55:38

Actual Astronomy - Top Ten Techniques for Buying Used...

The 365 Days of Astronomy ·

2026/09/17

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. actualastronomy@gmail.com Top ten techniques for buying used telescope gear on Episode 552 of the Actual Astronomy podcast. I'm Chris and joining me is Shane. We are amateur astronomers who love looking up at the night sky and this podcast is for everyone who enjoys going out under the stars. New vs. used: Baked in discount

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06:39

Deep Astronomy - The Triangulum Galaxy: The Most...

The 365 Days of Astronomy ·

2026/09/16

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 naked eyes is? The answer is The Triangulum Galaxy some three million light years from Earth. This galaxy, along with the Great Andromeda Galaxy will collide with our Milky Way in about four billion years. This galaxy collision will herald in a new era for our home galaxy The Milky Way. We will transform into an entirely new galaxy with

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