The 365 Days of Astronomy

Neutron stars, the compact remains of a massive star following a supernova explosion, are the densest matter in the Universe. Some neutron stars, known as magnetars, also claim the record for the strongest magnetic fields of any object. How magnetars, which are a mere 15 kilometers across, form and produce such colossal magnetic fields remains a mystery.     New observations by a team of astronome...

Hosted by Dr. Pamela L.   Gay. From July 8, 2026. The physics behind modern spaceflight explores everything from aerodynamics to thermodynamics with a lot of kinematics playing a role along the way. We welcome on guest Trisha Muro to discuss her new book, "It's (Just) Rocket Science", which explores how we can learn physics through spaceflight missions.   We've added a new way to donate to 365 Day...

https://spacescoop.org/en/scoops/2609/why-does-jupiter-have-bigger-moons-than-saturn/ Hosted by our editor, Richard Drumm. Jupiter and Saturn are the gas giants in our Solar System. Ummm… Uranus & Neptune are now called ice giants. But back to Jupiter & Saturn. They are the largest planets, have the most moons compared to the other planets, and if that isn't cool enough, they're home to some of th...

Paul Hill & Dr. Jenifer "Dr. Dust" Millard host.   Damien Phillips, John Wildridge and Dustin Ruoff produce. This month it appears cosmology is saved, Swift maybe saved and exoplanets have their magnetosphere measured. Jeni has been in the States where she may have been turned into an android visiting Silicon Valley.   We've added a new way to donate to 365 Days of Astronomy to support editing, ho...

Hosted by Dr. Paul M. Sutter. What are the weaknesses of inflation theory? How did the ekpyrotic theory attempt to improve it? How did it open up its own can of worms? 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://w...

Mon 06: Astronomy Cast Ep. 6: Ep. 6: More Evidence For the Big Bang http://www.astronomycast.com/archive/ From October 16, 2006. Last week's episode started out with a bang… a Big Bang. This week we continue our discussion into the beginning of everything. We present three additional lines of evidence that have led astronomers to the conclusion that our Universe started out as a singularity 13.7 b...

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 2026. Today's 2 topics: - According to NASA an average of one catalogued piece of space junk per day has come down to Earth over the past 50 years. Research is described which can trac...

Hosted by our Director, Avivah Yamani. Discover the highlights of the July 2026 equatorial night sky, including Venus meeting Regulus, Mars and Uranus' closest conjunction until 2053, the Buck Moon, meteor showers, and the best nights to observe the Milky Way.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.   Just visit: https://www.pat...

From June 24, 2026. In this episode we look at the hidden and unexpected geology that may lurk beneath East Antarctica's ice sheet, evidence of past worlds and lost moons that may once have populated our solar system, and evidence of a past Supernova that today may be showering the Earth with material.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and prod...

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 Patreon thanks go out to Justin Y. Also thanks for all the kind comments on the David Nagler Episode. [Rich] I'm sorry, but the lads didn't give me a detailed list of sky treats to put here in the show...

Today'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 b...

Things aren't always straight-forward. Hosted by Steve Nerlich. Dear Cheap Astronomy – What's all the current fuss about dark energy? Some preliminary data from the Dark Energy Spectroscopic Instrument, also known as DESI has resulted in a swath of popular science articles claiming dark energy is diminishing.   Well… It's worth starting by saying that many of the core project team have stressed it...

https://www.youtube.com/watch?v=aDgA3eiUANs Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live June   22, 2026. The Saturn 5 was a monster, capable of sending humans and a lander to the Moon and bringing them back again. But the number of heavy lift rockets since then has gotten pretty sparse. Now, with tens if not hundreds of thousands of satellites in the...

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 2026. Today's 2 topics: - Artificial light at night also known as light pollution is degrading human safety and health as well as damaging the natural environment on which we all depen...

Hosted by Dr. Jacinta Delhaize & François Campher. Jacinta and Francois wrap up Season 6 of The Cosmic Savannah with this exciting and reflective episode, discussing the history, science and legacy of the Southern African Large Telescope (SALT) which celebrated it's 20th anniversary in November of 2025. The team is joined by Professor David Buckley from the South African Astronomical Observatory (...

Hosted by Dr. Pamela L. Gay. From June 17, 2026. Join Pamela for an hour that looks at science and society as she talks with author and cosmologist Chanda Prescod-Weinstein . In her new book, "The Edge of Space-Time: Particles, Poetry, & the Cosmic Dream Boogie" Prescod-Weinstein weaves scientific and lyrical understandings of cosmology, bringing together the language of elders with the math of mo...

Hosted by our Director, Avivah Yamani. What makes a planet potentially habitable? In this episode of Astronomy Words, we explore the habitable zone, also known as the Goldilocks Zone, and learn why worlds like Earth, Mars, Venus, TRAPPIST-1, and Kepler-186f are helping astronomers search for life beyond our Solar System.   We've added a new way to donate to 365 Days of Astronomy to support editing...

Paul Hill and Dr. Jenifer "Dr. Dust" Millard host.   Damien Phillips, John Wildridge and Dustin Ruoff produce. The idea that sparked a billion-dollar space telescope was recorded in the most unlikely of places: a scrap of paper fished out a pocket while gondolas sailed by in Venice. In this talk, award-winning astrophysicist and science communicator Steve Eales of Cardiff University takes us on th...

https://www.youtube.com/watch?v=Cil0v7dIkgc Hosted by Tony Darnell. Streamed live on Jul 6, 2017. If we send humans to Mars, will they be able to survive? How hostile is the solar system for human exploration?   The Mars environment presents many challenges to human survival and long-term residence. In addition to radiation, unbreathable atmosphere, and dust storms, surviving alien microorganisms...

https://www.youtube.com/watch?v=3vQt1UYsV24 Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Jun 15, 2026. Well, we're just a couple of weeks away from summer hiatus and so it's time to give you some homework. Here's our list of stuff we've been reading watching and playing. This should fill the Astronomy-Cast-shaped hole in your media landscape. On the...

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: - My Catalina Sky Survey teammate Tracie Beuden was observing with our Schmidt telescope on Mt. Bigelow, Arizona in the constellation of Perseus when she found...

From Orion and the Summer Triangle to Indigenous sky traditions, this episode explores how constellations became tools for navigation, storytelling, and understanding the night sky.   "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, astrophot...

Hosted by Dr. Pamela Gay. From June 10, 2026. In this episode, we look at the SpaceX SEC initial filing and put its facts and figures in context and ask, can they do it? And can the Earth survive if they succeed?   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 a...

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   This month we talk about the full range of telescopic magnification powers from Low, Medium to High and how to achieve them using exit pupil. Topics include using exit pupil as a guide to power and h...

Are we really ready? Hosted by Steve Nerlich. From Dec 1, 2025. Cheap Astronomy tries to stay sane on a trip to Mars? Dear Cheap Astronomy – Will we just go nuts on a two-year mission to Mars Well, we might if the space radiation doesn't kill us first. As we may have noted in previous episodes, current timelines for when we'll land on Mars seem to take little account of the fact that there are man...