The 365 Days of Astronomy

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 ha...

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...

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 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://ww...

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 a...

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 drama...

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://w...

http://www.astronomycast.com/archive/ From June 15, 2009. The surface of the Earth feels solid under your feet, but you're actually standing on a plate of the Earth's crust. And that plate is slowly shifting across the surface of the Earth. Over geologic timescales, plate tectonics has totally resurfaced our planet, bringing continents together, and tearing them apart. We know we have plate tecton...

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: - Looking at the stars on a clear dark night, far from the artificial air glow humanity creates, have you ever wondered what it would be like to travel in tru...

Astronomers have observed the longest-ever gamma-ray burst — a powerful, extragalactic explosion that lasted over seven hours. Rapid follow-up observations with the U.S. Department of Energy-fabricated Dark Energy Camera and the International Gemini Observatory provided crucial information about the possible origin of this extraordinary event and the galaxy that hosts it.   Bios: - Rob Sparks is i...

From December 3, 2025. The world we live on today has undergone dramatic change since it first formed, and time hasn't necessarily been kind. Earth has gained some weight (and a Moon) after a chance collision. A leaky gut led to some confusing internal structures. Here on the surface, mountains keep finding new ways to pop off and destroy surroundings. But scientists are helping us understand all...

https://www.youtube.com/watch?v=CtVKAQMNjY4 Hosted by Fraser Cain & Tim Dodd. From   Feb 27, 2018. NASA is going to decide between a comet sample return mission or a helicopter on Titan. Which mission should it be? [Spoiler alert! NASA went with the Dragonfly mission.] Tim's video: https://www.youtube.com/watch?v=JkS2dP7eiEU   We've added a new way to donate to 365 Days of Astronomy to support edi...

Hosted by Steve Nerlich. Immortality is hard work. Episode 6a: Staying Switched On It's difficult to achieve immortality unless you also achieve invulnerability, since even if you don't age or get sick you can still die from a natural disaster, or a murder, or whatever. Indeed, the longer you live the more likely some unexpected calamity may come your way. So, if your only immortal up until the po...

https://www.youtube.com/watch?v=nUyT46ZQYsc Hosted by Tony Darnell. From Feb 6, 2025. JWST Discovers Planet Formation in the Conditions of the Early Universe! Journey with the James Webb Space Telescope to the star cluster NGC 346, a vibrant region of star birth and potential planet formation. This image offers a glimpse into the early universe, where stars formed under conditions very different f...

https://www.youtube.com/watch?v=l2kddFmnF5o Hosted by: Fraser Cain and Dr. Pamela L. Gay. Streamed live on Nov 8, 2025. Scientific expertise is under attack on all fronts with concerns coming from politicians and the public. While most of this is unwarranted and politically motivated, there can be germ of truth. Bad science does happen, but how? How is it that papers that very few believe still ma...

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 September 2025. Today's 2 topics: - The lunar roving, battery powered, 4 wheel drive "Moon Buggy" allowed astronauts on Apollo 15, 16, and 17 to travel 8 mph on the lunar surface with a maxi...

Hosted by our Director, Avivah Yamani. Today we have sky guide for the rest of December 2025, specifically curated for observers in the equatorial region with Indonesia as the based of location. While the recent dazzling Full Moon and Supermoon gave us a brilliant start, the celestial show continues with powerful planetary meetings and the most spectacular meteor shower of the year!   We've added...

From March 3, 2020. Hosted by Suzie Murph. This week's news is weird. Cotton candy exoplanets called "SuperPuffs" may have rings, the Milky Way Galaxy may have been warped by a major collision, and conference COVID cancellations and uncertainty are overwhelming the news this week.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.   Just v...

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com - Dec 3-4 – Moon 0.8° N of Pleiades (Occults stars in Virginia) Carbon Star U Lyr best tonight - Dec 4 – Full Moon in Taurus - Dec 7 – Jupiter 4° South of Moon Mercury Greatest Elongation 21° from Sun in morning Sky Endymion sunset rays visible on Moon - Dec 7-8 Moon and M44 - Dec 8 – 16 Psyc...

Paul Hill and Dr. Jenifer "Dr. Dust" Millard host.   Damien Phillips, John Wildridge and Dustin Ruoff produce. This episode it is a new bananza with discussion of the Thirty Metre Telescope, shenanigans on Mars, asymmetrical supernovae and more trouble in the world of cosmology. There is a Xmas Telescope buying guide as well as our monthly skyguide!   We've added a new way to donate to 365 Days of...

What happens to a white dwarf when it cools off? How long does it take? Do they just stay black forever, or will something more interesting happen to them someday? 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.p...

https://www.youtube.com/watch?v=MI7BBHAhdSo Hosted by: Fraser Cain and Dr. Pamela L. Gay. Streamed live on Nov 9, 2025. We are powerless fans of space exploration. But what if some fool gave us the authority and funding to make our space dreams a reality? Someone asked us what we'd do with a billion dollars. What missions? Which telescopes? But what if we had more? 100 Billion! A trillion! All 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 September 2025. Today's 2 topics: - The Sun is our very own well behaved star. It rises and sets in our sky every day and powers and makes possible all life forms on planet Earth. A new appr...

Hosted by our Director, Avivah Yamani. In Japanese folklore Tokuzou was a great mariner from Osaka who relied on Polaris (as we europeans call it), the North Star for navigation at sea. Then one night his wife saw that it had shifted out of place and she was afraid that her husband wouldn't be able to find his way back home!   We've added a new way to donate to 365 Days of Astronomy to support edi...

From April 21, 2021. Researchers looked for a slowdown in black hole rotational speeds due to the collection of ultralight bosons, but they found nothing, eliminating the hypothetical particle from the list of possible dark matter particles. Plus, neutrino hunting, neutron stars, and a space hurricane.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and prod...