H’ad Astra Historia Ep. 201 – The 2025 HAD Osterbrock Book Prize
Release Date: 01/23/2025
Ask A Spaceman - Could We Travel to Parallel Universes?
The 365 Days of Astronomy
Where do parallel universes exist? Could we use wormholes to travel to them? What does time travel have to do with all this? I discuss these questions and more in today’s Ask a Spaceman! Support the show: All episodes: Follow on X: 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, Robert B, Michael P, Naila, Sam R, John S, Joshua, Scott M, Rob H,...
info_outline
Astronomy Cast Ep. 742: Atmospheric Gravity Waves
The 365 Days of Astronomy
Streamed live on Jan 27, 2025. Hosted by: Fraser Cain and Dr. Pamela L. Gay Gravity Waves ... not gravitational waves ... move atmospheres and make pretty clouds. Have you ever looked up into the sky and seen bizarre cloud formations that look like waves on the ocean? These are gravity waves. Not to be confused with gravitational waves, and they’re caused by a balance of buoyancy and gravity. And of course these have been seen across the solar system. SUPPORTED BY YOU This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be...
info_outline
Travelers in the Night Eps. 297E & 298E: Weird Centaur & Psyche Water
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 August 2024. Today's 2 topics: - Richard Kowalski discovered 2016 WM48, a Centaur. Centaurs are named after the mythical beasts which were half human and half horse perhaps because they have characteristics of both asteroids and comets. 2016 WM48, is about a mile in diameter. We don't know if it has rings, tiny moons, or a gas cloud surrounding it as some other Centaurs do. 2016 WM48 must have had a catastrophic...
info_outline
Last Minute Astronomer - February Episode
The 365 Days of Astronomy
Hosted by Rob Webb. Full text available at the Cosmos Safari Blog. February 2025 is a phenomenal continuation of January’s planetary-ness! You’ll get chances to see all the planets before going to bed and a conjunction of Mercury & Saturn. Hi everybody, I’m Rob, your Last Minute Astronomer, bringing astronomy to normies and nerds, with little time to spare. We’ll start by talking about this month’s big events, then highlight the naked eye planets, and finish up with the lunar phases, so you can plan ahead better than me. LUNAR CLOSE ENCOUNTERS The Moon...
info_outline
EVSN - Space Stories of Joy
The 365 Days of Astronomy
From January 24, 2025. It's the kind of week where we feel the need to put joy into the world, and we've made the decision to just find stories to bring a smile and share them with you. And also rockets, we're bringing you all the rocket news. 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 visit for cool Astronomy Cast and...
info_outline
Cosmic Perspective - The Springfield Telescope Makers, 100 Years Young
The 365 Days of Astronomy
Sponsored and hosted by Andy Poniros. From the Annual Springfield Telescope Makers Stellafane Convention Tara Roberts Zabriskie discusses the filming of her Springfield Telescope Makers Documentary & several STM members (Tom Spirock, Phil Rounseville, Katie Shusdock, Dave Groski and Dave Kelly) discuss their personal experiences as STM, the history of the club & the Stellafane convention, & how this passionate group of individuals has been bringing telescope making to the public for 100 years. We've added a new way to donate to 365 Days of Astronomy to support editing,...
info_outline
Big Impact Astronomy - Diversity, Equity, & Science Fiction with Jörg Matthias Determann
The 365 Days of Astronomy
Hosted by Mike Simmons. - Dr. Jörg Matthias Determann discusses his role as a historian of science, with a focus on biology, astronomy, and astrobiology, emphasizing diversity, equity, and inclusion within astronomy. - He highlights the universal appeal of astronomy and how it connects all cultures under the same sky, while acknowledging barriers in elite academic circles. - **Highlight:** *Science fiction as a tool for inclusivity:* Jörg explores how science fiction inspires broad audiences, bridging gaps between elite sciences and marginalized groups. Mike Simmons is the founder of...
info_outline
Awesome Astronomy - Venus. Twinned with Milton Keynes
The 365 Days of Astronomy
Paul Hill and Dr. Jenifer “Dr. Dust” Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Episode 151! Happy New Year! This month we talk about an new climate history for Venus, a new origin story for Mars’ moons and we chat about the new potential head of NASA… 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!...
info_outline
Astronomy Cast Ep. 741: Technosignatures
The 365 Days of Astronomy
Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live on Jan 20, 2025. Pollution will ultimately give away a society. SUPPORTED BY YOU This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. Thanks to: Andrew Poelstra, BogieNet, Brian Cagle, David, David Truog, Ed, Gerhard, Schwarzer, Jeanette Wink, Siggi Kemmler, Stephen Veit 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...
info_outline
Travelers in the Night Eps. 779 & 780: What If An Asteroid is About To Impact Earth? & Scary Space Rock
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 January 2024. Today's 2 topics: - A research project whoes goal is to explore if it would be possible, on short notice, to pulverize a small asteroid so that it would not enter the Earth’s atmosphere as a single object perhaps saving humanity from an very expensive sonic boom. - My Catalina Sky Survey teammate David Rankin was being filmed and interviewed by the NASA 360 crew at our 60 inch telescope on Mt. Lemmon,...
info_outlineToday’s guest is Dr. Seb Falk is the recipient of HAD’s 2025 Osterbrock Prize for his book “The Light Ages: the Surprising Story of Medieval Science”. His exceptionally well-written book takes the reader on a learning journey with the 14th century Benedictine monk John Westwyk who, at the end of his career in 1392, wrote an instructional manuscript in Middle English for an equatorie to compute a planet’s location. Originally discovered in 1951 and attributed to Chaucer, 30 years later the manuscript’s author was identified as Westwyk. Based on years of meticulous scholarly research, Falk teaches the reader detailed, and progressively complicated, 14th century science in this thoroughly pleasurable story about Westwyk’s life.
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.
Podcaster:
Loretta Cannon (an AAS affiliate via Rose City Astronomers) is a science-and-word-nerd who really likes the stars. She quite enjoys working as HAD’s podcaster, bringing astronomy stories to you.
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!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
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 [email protected].