The 365 Days of Astronomy

https://www.youtube.com/watch?v=d7FAg_AYXaw From April 14, 2025. Astronomers using the JWST have made direct observations of the black hole at the center of our galaxy: Sagittarius A*.   These observations are possible because the Webb Space Telescope can peer through the dust at the center of our galaxy using infrared light.   These observations surprised astronomers.   We've added a new way to d...

https://www.youtube.com/watch?v=PpZRjII8qkc Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Feb 2, 2026. One long standing mystery in astronomy were the quasars. Incomprehensible energy blasting out of a point-like source, billions of light years away. We now know these are actively feeding supermassive black holes, which can turn off and on in a start...

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 June, 2025. Today's 2 topics: - In the search for life on Mars, Europa, Titan, and elsewhere in the universe astro-biologists are scouring the Earth for creatures tough enough to flourish un...

Hosted by Avivah Yamani, our Director. February 2026 is packed for stargazers at the equator, with a dusk-time planet parade, dark New Moon skies for astrophotography, and the year's first "Ring of Fire" annular solar eclipse on February 17 (visible from Antarctica). Catch beautiful Moon pairings with Antares, Saturn, the Pleiades, and Jupiter, and join the Globe at Night campaign to help measure...

From January 28, 2026. In this episode we look at highlights from the latest American Astronomical Society Meeting. An accidental theme came out: with each new telescope and each improved instrument we can look more closely at our Universe - we can and do learn more and understand more even about the things we thought we knew best. In this episode, Rubin Observatory brings rapidly rotating asteroi...

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com This month we talk about the Moon occulting Regulus, Saturn and Neptune pairing up while Mercury is visible in the evening sky and occulted by the Moon for some. The Zodiacal light also becomes visible in February and we give you the details on seeing lunar features and some of the best Deep...

Paul Hill and Dr. Jenifer "Dr. Dust" Millard host.   Damien Phillips, John Wildridge and Dustin Ruoff produce. We discuss the British Government's vandalism of UK physics and astronomy. In better news we celebrate the refunding of NASA and the up coming Artemis II mission… will Paul finally get excited?   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and pro...

Hosted by Dr. Paul M. Sutter. What is the weak equivalency principle? How was antimatter discovered and why is it the perfect thing to put gravity to the test? What did the CERN experiment discover? 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/Pau...

https://www.youtube.com/watch?v=sIVunut4Dgk Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Streamed live on Jan 26, 2026. We live in a cosmic shooting gallery. It's not a matter of "if" but "when"! Dinosaurs, blah, blah, blah. You know the drill. But seriously, folks, it's raining rocks & ice out there! How seriously should we take it? What happens when a variety of d...

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 May & June, 2025. Today's 2 topics: - In a recent paper published in Nature Astronomy entitled "Surveys of the scientific community on the existence of extraterrestrial life" Dr. Peter Vicke...

Hosted by our Director, Avivah Yamani. Earth swings closest to the Sun at perihelion and farthest at aphelion, words that apply to every planet orbiting the Sun. Learn how Kepler's laws reveal an elliptical orbit, why Earth moves faster at perihelion, and why seasons come from Earth's tilt, not distance.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and pr...

From February 8, 2021. A new theory has been proposed that could answer the question of what causes recurring landslides on Mars: small-scale ice melting just below the surface may leave the regolith vulnerable to wind. Plus, a look at some of Earth's ancient climate changes, a gamma-ray source, puffy galaxies, and this week's What's Up.   We've added a new way to donate to 365 Days of Astronomy t...

https://www.youtube.com/watch?v=lxgdcG_NQyA Hosted by Fraser Cain. And a happy robin. From May 3, 2018. The European Space Agency just dropped an enormous amount of data onto the scientific community. The location and position of 1.7 billion stars in 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://...

Paul Hill and Dr. Jenifer "Dr. Dust" Millard host.   Damien Phillips, John Wildridge and Dustin Ruoff produce. So it looks like Low Earth Orbit is not just crowded but a disaster waiting to happen trapping humanity on this planet for a very long time… https://www.esa.int/Space_Safety/Space_Debris/Space_debris_by_the_numbers https://arxiv.org/abs/2512.09643   We've added a new way to donate to 365...

Still looking. Hosted by Steve Nerlich. Dear Cheap Astronomy – Is there anything new on Planet 9? Well, not really and there is some growing skepticism about whether it's really there. Nonetheless, its original proponents, Mike Brown and Konstantin Batygin, still stick to their guns on the matter, though both agree Planet 9's existence must be considered speculative until it is actually observed....

From October 23, 2008. Hosted by Fraser Cain & Dr. Pamela Gay. Everyone loves a theme. And this week we've collected together some of your questions about relativity. More light speed spacecraft, twin paradoxes, and the mixing up of gravity, time and mass. If you've got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we'll try to tackle it for a future show...

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 May, 2025. Today's 2 topics: - NASA's Europa Clipper was launched October 14, 2024 on a mission to conduct a detailed study of Jupiter's Moon Europa.  The space craft will travel some 1.8 bi...

Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela, Dr. Daniel Cunnama & François Campher. At long last…we're back!!! The Cosmic Savannah is entering an exciting new era as we transition into a video podcast! In this episode, we kick off that journey and invite you to join us as we venture even deeper into the cosmic ocean—exploring the universe, sharing new perspectives, and connecting with th...

From April 28, 2022. An analysis of images taken by the Spirit rover of olivine-rich rocks in Gusev crater has revealed a much more violent volcanic origin than originally thought and one that likely occurred early in Mars's history. Plus, balloon science, more Mars, more volcanoes, pretty Hubble images, and What's Up (a supernova!).   We've added a new way to donate to 365 Days of Astronomy to su...

https://spacescoop.org/en/scoops/2529/a-thrilling-radio-message-from-a-nearby-red-star/ Hosted by our editor, Richard Drumm. About 130 light-years away from Earth there's an early M-Dwarf star called StKM 1-1262. Let's call it 1262… It's actually a common, ordinary star, the most common of stars, in fact. It's a red dwarf! They're also called 'Flare Stars' because they flare up frequently. Tempest...

Paul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host.   Damien Phillips, John Wildridge and Dustin Ruoff produce. It's time for our annual review of the year, a look forward to next year and of course the Panto!…and the return of an old face!   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.c...

Hosted by Dr. Paul M. Sutter. How does the double-slit experiment work? What does it teach us about reality and measurement if we try to mess with the experiment after it's already started? How does quantum complementarity guide us with how to think about it? I discuss these questions and more in today's Ask a Spaceman!   Support the show: http://www.patreon.com/pmsutter All episodes: http://www....

https://www.youtube.com/watch?v=rTFbrCIkrfU Streamed live on Jan 12, 2026. Hosted by: Fraser Cain ( @frasercain ) and Dr. Pamela L. Gay ( @CosmoQuest ) Humans live short lives, and from our perspective the seasons are something that come and go with perfect regularity. But astronomers know the terrible truth! And that there are cycles that slowly shift over tens of thousands of years, shifting 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 May 2025. Today's 2 topics: - My Catalina Sky Survey teammate Hannes Gröller was asteroid hunting in the constellation of Ursa Major with the University of Arizona 90 inch Bok telescope on K...

Dive into the wonders of the lunar eclipse! ASTROMAN breaks down the 2026 total "Blood Moon" in Asia, offering tips for skywatchers and the science behind the shadow.   "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...