H’ad Astra Historia - Ep 304: More ‘This Month in Astronomical History’ Sedna & Lunokhod
Release Date: 07/01/2026
EVSN - Black Holes, Giant Galaxies & A Baby Planet
The 365 Days of Astronomy
From May 21, 2020. Hosted by Dr. Pamela L. Gay. 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...
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Actual Astronomy - Messier Objects For July 2026
The 365 Days of Astronomy
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. Description: This month we talk about some of the globular clusters from the Messier catalogue you can easily see on summer nights. From big and bright M5 and M4 to small and mighty M80 we talk about viewing some of the best globular clusters of the year. We also talk about a large, faint face on spiral galaxy. All of these objects are possible with binoculars, most are down right easy even with small binoculars. ...
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Guide To Space - Where Are All The Alien Robots? The Chilling Idea Of Von Neumann Probes
The 365 Days of Astronomy
From Oct 6, 2016. Hosted by Fraser Cain. As you know, I’m obsessed about the Fermi Paradox. Where are all the aliens? But an even stranger question is: where are all the robot aliens? If you’ve seen at least one other episode of the Guide to Space, you know I’m obsessed about the Fermi Paradox. This idea that the Universe is big and old, and should be teeming with life. And yet, we have no evidence that it exists out there. We wonder, where are all the aliens? PBS Space Time Von Neumann: We've added a new way to donate to 365 Days of Astronomy to support editing, hosting,...
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Ask A Spaceman Ep. 276: What Would Happen if the Sun…Stopped?
The 365 Days of Astronomy
Solar Apocalypse! Hosted by Dr. Paul M. Sutter. What really keeps the Sun shining? How long would it stay warm if fusion stopped? How long would it take before we noticed? 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,...
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Astronomy Cast Ep. 58: Inflation
The 365 Days of Astronomy
From October 15, 2007. Hosted by: Fraser Cain () and Dr. Pamela L. Gay () We interrupt this tour through the solar system to bring you a special show to deal with one of our most complicated subjects: the big bang. Specifically, how it’s possible that the universe could have expanded faster than the speed of light. The theory is called the inflationary theory, and the evidence is mounting to support it. Einstein said that nothing can move faster than the speed of light, and yet astronomers think the universe expanded from a microscopic spec to become larger than the solar system, in a...
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Travelers in the Night Eps. 899 & 900: Hitch Hiking an Asteroid to Mars & Earth Life From Mars
The 365 Days of Astronomy
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 May 2026. Today's 2 topics: - Asteroids could provide a solution for the serious problem of how to protect astronauts from harmful solar and cosmic radiation during long duration space flights and thus eliminate the need for the spacecraft itself to have heavy shielding material. The idea is for the spacecraft to spend most of the journey inside the asteroid. - Some of the 635,000 impact craters found on Mars are...
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AstroMan - D for Dark Sky Protection
The 365 Days of Astronomy
When was the last time you saw the Milky Way? In this episode of Astroman, Exodus Chun-Long Sit explores how light pollution is changing our night skies, affecting wildlife, wasting energy, and limiting our view of the universe. Learn why protecting dark skies matters—and how simple actions can help bring the stars back. “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...
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EVSN - Astronomy Asks: How Did You Get There?
The 365 Days of Astronomy
From July 1, 2026. How is this the last episode of the season? July snuck up on us. We’ll be back Sept 2 with Season 5! For now, we’ve got astronomers asking questions; questions like “Did you eat a planet?” and “How did you get there?” Expect the unexpected with a side of rockets. 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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Space Stories - Starburst Galaxy: The Universe's Stellar Baby Boom
The 365 Days of Astronomy
Hosted by Avivah Yamani, our Director! Some galaxies don't just make stars. They go on a star-making frenzy! Discover what turns an ordinary galaxy into a starburst galaxy, and why these spectacular events help astronomers understand how galaxies evolved over billions of years. 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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Guide To Space - What Are Fast Radio Bursts? A Big Mystery in Astronomy
The 365 Days of Astronomy
Hosted by Fraser Cain. From Apr 26, 2017. Here's a big mystery in astronomy: fast radio bursts. Brief shrieks of radio waves coming from space. What are they? Where do they come from? Astronomers have no idea. Team: Fraser Cain - @fcain / frasercain@gmail.com Karla Thompson - @karlaii Chad Weber - weber.chad@gmail.com You might think you’re watching an educational channel, where I explain fascinating concepts in space and astronomy, but that’s not really what’s going on here. What’s actually happening is that you’re tagging along as I learn more and...
info_outlineToday’s ‘guest’ is HAD’s This Month in Astronomical History. I’ll be reading more essays from the archives: Emily McMahon’s November 2020 essay titled, “Sedna: In the Depths of the Solar System”, and Dr. Ken Rumstay’s November 2022 essay titled, “Lunokhod 1 - The First Extraterrestrial Rover”. Please note that Emily was a high school student when she wrote her essay, so you don’t have to be an astronomer or astrophysicist to write for TMIAH.
H’ad astra historia is the official podcast for the Historical Astronomy Division of the American Astronomical Society. We’re here to share stories from and about the people who study the stars, planets, and the cosmos. We’ll be hearing from individuals who not only study the history of astronomy, but also those who lived it, who were “in the room” during pivotal events within the last 50 years or so.
Podcast theme music: "Frost Waltz" Kevin MacLeod (incompetech.com), licensed under creative commons: by attribution 4.0 license (http://creativecommons.org/licenses/by/4.0/)
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.
This Month in Astronomical History:
https://had.aas.org/resources/astro-history
Dr. Mugdha Polimera:
https://www.mugdhapolimera.com/
Sedna: In the Depths of the Solar System
TMIAH Nov 2020 “Sedna: In the Depths of the Solar System”:
https://aas.org/posts/news/2020/11/month-astronomical-history-november-2020
Emily McMahon:
https://www.linkedin.com/in/emilykmcmahon/
Sedna (2003 VB12):
https://en.wikipedia.org/wiki/Sedna_(dwarf_planet)
Sedna (Inuit legend):
https://en.wikipedia.org/wiki/Sedna_(mythology)
Kuiper Belt:
https://science.nasa.gov/solar-system/kuiper-belt/
Oort Cloud:
https://science.nasa.gov/solar-system/oort-cloud/
Palomar Observatory:
https://sites.astro.caltech.edu/palomar/homepage.html
https://sites.astro.caltech.edu/palomar/about/chronology.html
Mike Brown (CalTech):
https://mikebrown.caltech.edu/
Chad Trujillo (NAU, Gemini):
https://directory.nau.edu/person/cat382
https://www.sciencefriday.com/person/chad-trujillo/
David Rabinowitz (Yale):
https://en.wikipedia.org/wiki/David_L._Rabinowitz
https://physics.yale.edu/people/david-rabinowitz
Samuel Oschin 48” Schmidt Telescope:
https://sites.astro.caltech.edu/palomar/about/telescopes/oschin.html
Quasar Equatorial Survey Team (QUEST) Camera:
https://www.astro.yale.edu/mschwamb/Quest_La_Silla_KBO_Survey/Telescope_and_Camera.html
SkyMorph program:
https://ui.adsabs.harvard.edu/abs/1998BAAS...30.1036L/abstract
Palomar Sky Survey:
https://voyages.sdss.org/expeditions/expedition-to-galaxies/sky-surveys/the-palomar-sky-survey/
Gemini Telescope:
Keck Observatory:
Hubble Space Telescope:
https://science.nasa.gov/mission/hubble/
NASAs’s Dwarf Planets (including Pluto, Eris):
https://science.nasa.gov/dwarf-planets/
Mike Brown’s paper describing Sedna’s discovery:
https://web.gps.caltech.edu/~mbrown/sedna/#planets
Sedna webpage (by Mike Brown):
https://web.gps.caltech.edu/~mbrown/sedna/#planets
animation of Sedna’s orbit by Robert Hurt (Spitzer Sci Ctr):
https://www.spitzer.caltech.edu/video/ssc2004-05v1-orbit-of-sedna
2012 VP113 ‘Biden’:
https://en.wikipedia.org/wiki/2012_VP113
2015 TG387 ‘The Goblin’:
https://en.wikipedia.org/wiki/541132_Lele%C4%81k%C5%ABhonua
https://www.npr.org/2018/10/02/653453443/a-small-planet-with-big-implications
Lunokhod 1 – The First Extraterrestrial Rover
TMIAH Nov 2022 “Lunokhod 1 – The First Extraterrestrial Rover”:
https://aas.org/posts/news/2022/11/month-astronomical-history-november-2022
Prof Kenneth Rumstay:
https://meritpages.com/KennethRumstay
HAD News:
https://had.aas.org/news/had_news
Mars Curiosity rover:
https://science.nasa.gov/mission/msl-curiosity/
Soviet Union:
https://en.wikipedia.org/wiki/Soviet_Union
Soviet N1 rocket:
https://en.wikipedia.org/wiki/N1_(rocket)
NASA’s Apollo program:
https://www.nasa.gov/the-apollo-program/
Lunokhod (‘moonwalker’) 1:
https://en.wikipedia.org/wiki/Lunokhod_1
Baikonur Cosmodrome:
https://en.wikipedia.org/wiki/Baikonur_Cosmodrome
Lunar Reconnaissance Orbiter:
https://science.nasa.gov/mission/lro/
Sky and Telescope magazine:
NPR article on Lunokhod 2 rover (discusses Garriott’s purchase):
https://www.npr.org/2010/03/20/124956591/lunar-rover-is-spotted-for-first-time-in-37-years
China’s Yutu rovers:
https://en.wikipedia.org/wiki/Yutu_(rover)
https://www.planetary.org/space-missions/change-4
Sputnik I:
https://en.wikipedia.org/wiki/Sputnik_1
Artemis Program:
https://www.nasa.gov/humans-in-space/artemis/
A Little Bit of Trivia – NASA mission patches
Artemis Program:
https://www.nasa.gov/humans-in-space/artemis/
Artemis I:
https://www.nasa.gov/mission/artemis-i/
Marvel’s Agents of S.H.I.E.L.D., season 3:
https://en.wikipedia.org/wiki/Agents_of_S.H.I.E.L.D._season_3
Mission patch:
https://en.wikipedia.org/wiki/Mission_patch
https://www.nasa.gov/gallery/human-spaceflight-mission-patches/
Loretta Cannon’s LinkedIn page (for transcripts’ pdf files):
https://www.linkedin.com/in/lorettajcannon-neptuneedit/
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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