The 365 Days of Astronomy

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 April 2025. Today's 2 topics: - On 27 December 2024 the Atlas group in Chile discovered an object now known as 2024 YR4 which appeared to have a significant chance of impacting Earth 22 December of 2032. The most recent data indicates the chance that 2024 YR4 impact Earth is about 1 in 25,000. These data indicate our moon has about a 1 in 700 chance to be impacted by this space rock. Even so a...

Paul Hill & Dr. Jenifer "Dr. Dust" Millard host.  Damien Phillips, John Wildridge and Dustin Ruoff produce. In this chatty news episode 164 we chat about more Artemis mission shenanigans and how the Russians have wrecked their only human rated launch pad.   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!  Ev...

From October 9, 2020. Join us as we take a look back to two weeks' worth of planetary stories, including solar system research on a binary trans-Neptunian object, diamonds in meteorites, the stratification of Titan's lakes, and how Jupiter affected Venus' habitability. Plus we go farther into space and see how super flares affect the chances for life on exoplanets and find an exoplanet with vaporized metal in its atmosphere.   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.co...

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com This month in episode 516 we talk about the many things to see in the night sky including, carbon stars, double stars, 24P Schaumasse is a Comet that just cracks 8th magnitude making it visible in binoculars. We also detail how people can explore Jupiter through a telescope followed by many NGC and Messier Objects you can see in the winter sky. Jan 1 - Struve 627 in Orion Colorful Double Star Primary Star (A component): Yellow, golden-yellow, pale orange, or...

Episode 209. Today's guest: Professor Thomas Hockey, with the University of Northern Iowa, is the recipient of HAD's 2026 LeRoy E. Doggett Prize, which is awarded biennially to an individual who has significantly influenced the field of the history of astronomy by a career-long effort. In this episode, we'll not only conclude our discussion of his most recent book, but we'll also talk about some rather fun and interesting topics.   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 th...

Episode 208. Today's guest: Professor Thomas Hockey, with the University of Northern Iowa, is the recipient of HAD's 2026 LeRoy E. Doggett Prize, which is awarded biennially to an individual who has significantly influenced the field of the history of astronomy by a career-long effort. In today's episode, our focus is mainly on his more significant books.   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 f...

https://www.youtube.com/watch?v=kGY4t683Xro Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Dec 22, 2025. Shortly after the big bang there were almost exactly the same amounts of matter and antimatter in the Universe, but there was just enough of a difference that we live in a matter-dominated Universe. But it didn't have to be that way! Explaining this mystery has been one of the great mysteries in astronomy, and today we'll see if there's been any progress! Why is the Universe the way...

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 2025. Today's 2 topics: - Astronomers have yet to discover any long lasting natural object, beside our Moon, which orbits the Earth, however, occasionally, a small space rock enters into a temporary dance with our home planet.   - My Catalina Sky Survey teammate Greg Leonard was asteroid hunting in the constellation of Hydra with our Schmidt telescope on Mt. Bigelow, A...

Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. In this "mid-season special" episode, we introduce you to an extraordinary giant radio galaxy nicknamed "Inkathazo", meaning 'trouble' in isiXhosa and isiZulu. We speak with Kathleen Charlton, a Master's student from the University of Cape Town, about the discovery of Inkathazo and her newly published work on the topic.   Kathleen spoke with us from the University of Oxford, where she was working with team members from the 'MIGHTEE' collaboration. She describes her experiences of first attending the AGN Populations Across Continents and C...

From January 27, 2021. It's a day ending in 'y', and planetary formation theories are once again being challenged. This time the challenge comes from a six-planet system with five planets in resonance. Plus a cloudless Jupiter, TRAPPIST-1, volcanoes, and some science of the weird.   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! ...

Hosted by Dr. Pamela Gay. A gentle fancy for the Christmas Season—an oft-told tale with a wistful twistful of Something that left the Earth with a wing and a prayer.   Earlier today, I had the stark realization that at the core of many Christmas stories is a core of sorrow or longing that must somehow be transformed into joy. Scrouge must learn charity. Ralphie longs for a bb gun and is betrayed by his joy. George is on the brink of suicide when his Guardian Angel intercedes. John McClane just needs to kee...

Hosted by our Director, Avivah Yamani! What does "solstice" really mean? In this episode, we unpack the Sun's yearly turning point, the seasonal flip between hemispheres, and the ancient sky-architecture of Stonehenge, from June solstice sunrise to December solstice sunset.   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...

https://www.youtube.com/watch?v=UE8yHySiJ4A Hosted by Tony Darnell. From  Sep 21, 2012. This video was done by request from a Space Fan.  Hope it's what you had in mind. IC 1101 is over one billion light years away in the constellation Virgo, just over the border from Serpens. https://en.wikipedia.org/wiki/IC_1101   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 m...

https://www.youtube.com/watch?v=2uvcumUc6Gc Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Dec 15, 2025. Atomic hydrogen is the raw material for stars, but there's a problem. It's cold & dark, but it can do a very rare trick, releasing a photon in a very specific wavelength, known as the 21 centimeter line. And thanks to this wavelength astronomers have mapped out star forming regions across the Milky Way, the Universe and into the Dark Ages! This forbidden transition of Hydrogen has led to the mapping of...

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 October 2025. Today's 2 topics: - Friday the 13th appears to continue to be a lucky day for the human race. When astronomers first discovered Apophis in 2004 it appeared possible that this 3 million ton, 1,200 foot diameter asteroid traveling at 8 mi/s could impact our planet creating a crater a several miles diameter and more than a half mile deep. Additional observations over the years have...

Episode 12. "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 CL Sit, also known as the ASTROMAN, is a transmedia astronomy educator, popular science author, STEAM educator, and science communicator in Hong Kong. He is recently the National Astronomy Education Coordinator (Chair of Hong Kong, China) of the International Astronomical Union and President of Starrix. He was a...

From February 11, 2020. Today's show starts with a mighty YORP. It turns out the YORP effect may spin asteroids to death in dying star systems. We also look at how the formations of giant planets and brown dwarf stars differ, and a new way to get science from dust.   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 Pa...

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com Today we have a guest joining us, Richard Wolf-Jacobson who is the founder of BB Labs/ PiFinder which is a new type of finder device. https://www.pifinder.io/   Before we get going Richard, can you tell us about where you are / observe / how you got started in Astronomy, what your interests are and what equipment you use?   * What is a Pi Finder? * How does it work? / How do you set it up?...

https://spacescoop.org/en/scoops/2528/whats-the-shape-of-a-supernova/ Rewritten & recorded by your editor, Richard Drumm. When you imagine an explosion in space, a supernova is usually what first comes to mind. But astronomers are still quite puzzled by some of the details of these cosmic fireworks. The typical supernova we often picture is really the end of a massive star's life. And a very dramatic ending at that!   During its existence, a star keeps its spherical shape through a very delicate balance between: - the outward pressure created by t...

Large Extra Dimensions! Hosted by Dr. Paul M. Sutter. What do extra dimensions have to do with the strength of gravity? What is a tower of gravitons? How can we detect extra dimensions even if we can't perceive them? 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 th...