Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. Watch the whole show on YouTube! [Editor's note: Start at 20:28 where the audio starts with some rocking marimba action! The last 5 minutes here are more tunes from the marimba band.] https://www.youtube.com/live/Dgw6mz5bTG4?si=xAr-fa0GvLwpT-pc This week, join us for a special live episode from the 2024 IAU General Assembly in Cape Town, South Africa, featuring black hole simulations expert Dr. Nicole Thomas and winn...
Nov 22, 2025•1 hr 8 min
From May 10, 2022. A luminous black hole already classified as an active galactic nucleus brightened suddenly in recent ground and space observations, and the cause may be due to a sudden flip in the magnetic poles. Plus, community science, rockets, Ingenuity, and an interview with Dr. Cathy Weitz from Planetary Science Institute. 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 ...
Nov 21, 2025•30 min
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com Our friend Mark Radice joins us to talk about his recent trip to Namibia where he helps run astronomy tours at a ranch. Great fun observing with guests and celestial sights including: - Alpha Centauri double star - 47 Tucanae – simply stunning - Comet SWAN (couldn't see Lemon) - Milky Way constellations - NGC 253 galaxy; M8 Lagoon; Tarantula Nebula - Saturn - Neptune - Moon - Sirius and...
Nov 20, 2025•59 min
https://www.youtube.com/watch?v=SHfUbNRO-3A From Mar 14, 2018. One of the biggest problems of spaceflight is the total lack of gravity. Here are some proposals that could generate artificial gravity through rotating spacecraft. Sign up to my weekly email newsletter: https://www.universetoday.com/newsletter 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...
Nov 19, 2025•14 min
Hosted by Dr. Paul M. Sutter. How did we discover the weak nuclear force? Why is it so strange compared to the other forces? What do mirrors have to do with all of this? 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, physics, an...
Nov 18, 2025•33 min
https://www.youtube.com/watch?v=whMphW1Tb5I Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live on Nov 8, 2025. With the arrival of the comet 3I/Atlas (Asteroid Terrestrial-impact Last Alert System), the world is getting a crash course in comets, their behavior, and of course their tails. Today we're going to talk about comets and their tails, why they exist, how they grow, why they can be different colors and how they can be sometimes point AT the Sun. Comets are one of the most animated...
Nov 17, 2025•33 min
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 August 2025. Today's 2 topics: - The Trappist-1 planetary system located about 40 light years away in the constellation of Aquarius consists of a small red dwarf star and 7 Earth sized planets. By carefully studying changes in the planet's transit timings and the shape of the dip in the ho...
Nov 16, 2025•6 min
Episode 11. "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 commu...
Nov 15, 2025•6 min
From November 5, 2025. In this episode, we look at some of our latest discoveries about the formation of star systems, including planets and moons, and the growth of black holes. We also take a closer look at our brightening skies, and the missions set to make things worse. We also cover the latest tales from the 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...
Nov 14, 2025•29 min
Hosted by Andy Poniros. Info: Author, fighter pilot, test pilot, & veteran of 5 Space Shuttle missions, Captain Robert "Hoot" Gibson discusses his books, as well as his fighter pilot experiences in the Vietnam war, & his Space Shuttle missions... Including piloting the 1st untethered astronaut spacewalk, mission STS-41B & his perilous top secret mission STS-27R. Intro Music: "A Moment in Space History", Andy Poniros Outro Music: "Funk 2001", Larry Benigno Organization: Cosmic Perspec...
Nov 13, 2025•56 min
https://spacescoop.org/en/scoops/2524/lonely-planet-the-hungriest-found-in-space/ Hosted by Richard Drumm, our editor. You've probably heard of exoplanets. Planets that orbit stars other than our Sun. But did you know that there are objects with a mass similar to a planet that float free in space, that don't orbit a star? These lonely wanderers are called rogue planets. Recently, a team of astronomers discovered a very special one in the southern constellation Chameleon. The rogue planet is name...
Nov 12, 2025•6 min
Hosted by Tony Darnell. From August 17, 2024. An international team of astronomers has directly imaged this exoplanet, one of the coldest ever seen. The team observed Epsilon Indi Ab using the coronagraph on Webb's Mid-Infrared Instrument. Only a few tens of exoplanets have ever been directly imaged by space- and ground-based observatories. These observations are ushering in a completely new era in exoplanet research. We've added a new way to donate to 365 Days of Astronomy to support editing, h...
Nov 11, 2025•7 min
https://www.youtube.com/watch?v=14QKJkt3cIE Streamed live on Nov 3, 2025. Hosted by: Fraser Cain and Dr. Pamela L. Gay. It is arguable that humanity now has the technological ability to live on Mars. It would be done at enormous expense and sacrifice, and there are some tricky problems that we haven't solved yet. Although we could live on Mars, should we? There is a famous quote from Jurassic Park: "Your scientists were so preoccupied with whether or not they could, they didn't stop to think if ...
Nov 10, 2025•42 min
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 July & August 2025. Today's 2 topics: - 24 hours a day, 16,600 feet above sea level in the high dry desert of northern Chile, the 66 antennas of 1.4 billion dollar Atacama Large Millimeter/submillimeter Array or ALMA receives signals located between the infrared and radio portions of t...
Nov 09, 2025•6 min
Hosted by Avivah Yamani, our Director. From latin "nebula" to stellar nurseries & ghostly shells, this episode dives into emission, reflection, dark, planetary nebulae and supernova remnants. These are the cosmic clouds at the start of star life and at the end of star life. Cradles and echoes of starlight, all in one story! 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 don...
Nov 08, 2025•9 min
From April 14, 2021. Fermilab released the first results of their Muon g-2 experiment this week, and the fundamental particles don't behave as predicted by the Standard Model of particle physics. Plus, dust, more dust, Martian water (again), and a review of Packing for Mars by Mary Roach. 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 podcas...
Nov 07, 2025•27 min
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com Episode 507. 1st - Carbon Star V Air best tonight 2nd - Saturn Neptune and Moon congregate in evening sky 4th - Two Shadows on Jupiter IO and Euorpa after 10pm here for us so that's midnight EST. 5th - Full Moon (closest moon of the year) Asteroid Victoria at opposition. Asteroid "12 Victoria" is a large S-type (stony) asteroid in the main asteroid belt, discovered in 1850 by J.R. Hind....
Nov 06, 2025•40 min
Paul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. November Part 1. Time for a Comet 3I/ATLAS deep dive, a chat about Paul's recent visit to the Cerne Abbas Starparty in Dorset and our new extended skyguide. 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 yo...
Nov 05, 2025•1 hr 9 min
Hosted by Dr. Paul M. Sutter. Is the Universe infinite? What about the cosmological horizons, the limits to what we can see? Will we ever know for sure what's beyond 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 those questions about space, science, astronomy, astrophysics, physics, ...
Nov 04, 2025•25 min
http://www.astronomycast.com/archive/ From April 29, 2007. What a week! Astronomers announced the discovery of an Earth-sized planet orbiting the nearby star Gliese 581! We talk about the technique used to discover the planet, the possibilities of finding even smaller planets, and what the future holds for finding another Earth. 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 do...
Nov 03, 2025•29 min
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 July 2025. Today's 2 topics: - When Asteroid hunters discover a new object it is given a score ranging from 0 which means it is likely to be a distant main belt asteroid up to 100 which means that it is likely to come near to us. Each newly discovered asteroid which receives a score of 65 ...
Nov 02, 2025•6 min
https://www.youtube.com/watch?v=a8dASH8Bg_M From Oct 19, 2015. Doesn't it feel like the Universe is perfectly tuned for life? Actually, it's a horrible hostile place, delivering the bare minimum for human survival. 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!...
Nov 01, 2025•7 min
From October 15, 2025. The Universe is hard enough to figure out without one kind of object dressing up as another, but - just in time for Halloween - researchers have figured out that the Little Red Dot in the early Universe just might be massive black holes surrounded in a costume of glowing red gas. Also in this episode, Hyabusa2's amusingly tiny destination, a white dwarf star eating what may be an icy dwarf planet, and tales from the launch pad. We've added a new way to donate to 365 Days o...
Oct 31, 2025•28 min
Today's guest: Prof. Kenneth Rumstay, emeritus of Valdosta State Univeristy, talks with us today about the history of the Historical Astronomy Division. We'll learn not only about how it got started, but also about how HAD works for its members today. 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 indivi...
Oct 30, 2025•40 min
Hosted by Steve Nerlich. Dear Cheap Astronomy – What is the right message to send to the aliens? Keen listeners may be familiar with Cheap Astronomy's ongoing despair at Earth's lacklustre attempts at communication with the wider Universe. A few episodes back we ran through a history of deliberate communications to date, about 90 per cent of which have been music – well mostly digitized and some analog radio transmissions of music. Dear Cheap Astronomy – Can we drill through the ice and find lif...
Oct 29, 2025•14 min
Hosted by Tony Darnell. From Dec 19, 2019. Get Stellina Telescope Here (affiliate link): http://bit.ly/2WJrPzr Here are my thoughts on a brand new telescope for amateur astronomers that was released by Vaonis, a French company that has done something remarkable with the Stellina telescope, they've created a fully-automated, self-contained optical system that is unlike anything I've seen before. This telescope is a real paradigm shift for amateur astronomy, never before has getting into the hobby...
Oct 28, 2025•21 min
https://www.youtube.com/watch?v=vSVS2x-8eG4 Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live on Oct 20, 2025. New instruments bring new mysteries, and when James Webb came on line it uncovered a collection of strange, compact, bright objects shifted deeply into the red end of the spectrum. These were dubbed "Little red dots" or LRDs. And the astronomical community continues to puzzle over what they are. When JWST first peered into the distant past, it discovered the early universe had ...
Oct 27, 2025•31 min
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 July 2025. Today's 2 topics: - Recently, my Grandsons, Dane and Hank joined our asteroid hunting team at the Catalina Sky Survey 60 inch telescope on Mt. Lemmon. The most interesting of our discoveries, 2017 KJ32 is only 16 feet in diameter, orbits the Sun once every 315 days, and can come...
Oct 26, 2025•6 min
From July 31, 2024. Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. In this double feature episode, Jacinta interviews two amazing astronomers at the SARAO conference (South African Radio Astronomical Observatory). Dr. Mpati Ramotsoku is a radio astrophysicist from South Africa. In the episode she discusses her journey from studying in the Netherlands to working in Italy at the Italian National Institute of Astrophysics in Cali, and eventually returning to South A...
Oct 25, 2025•51 min
From April 13, 2021. A new study examined the effects of recent increases in the number of space objects orbiting Earth and found that the proliferation of satellites contributes to a nearly ten percent increase over natural lighting of the night sky. Plus, Mars, Uranus, Neptune, ancient Earth, volcanoes, and our weekly What's Up segment. 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/365DaysOfAstron...
Oct 24, 2025•22 min
