EVSN - Will Asteroid 2023 DW Collide with Earth in 2046? (All signs point to no.)
Release Date: 09/22/2023
Astronomy Cast Ep. 783: Cataclysmic Variable Stars
The 365 Days of Astronomy
Hosted by: Fraser Cain () and Dr. Pamela L. Gay () Streamed live on Feb 16, 2026. There are many types of variable stars. Today we’re gonna talk about cataclysmic variable stars, which are the result of a white dwarf stealing material from a companion star. And this whole process makes supervillain Pamela happy. Gravity is the weakest force, but on the scales of stars, it is capable of great violence. In this episode, we look at the wild physics of cataclysmic variables: binary star systems where one star is a predatory compact stellar remnant, while the other is a victimized normal star....
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Travelers in the Night Eps. 857 & 858: Gila Cliff Dwellings & Vanishing Dark and Quiet
The 365 Days of Astronomy
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. From July 2025. Today's 2 topics: - Recently my Catalina Sky Survey teammate Dr. Hannes Gröller and I traveled to the Gila Cliff Dwellings National Monument to install two night sky meters which will enable this wonderful national treasure to become an international dark sky park. Surrounded by vast tracts of unoccupied public land and having an abundance of clear weather the Gila Cliff Dwellings National Monument and the...
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ASTROMAN - Solar Eclipse
The 365 Days of Astronomy
Episode 14. Our Sun is more than a glowing ball in the sky. It’s a dynamic, ever-changing star at the peak of its solar cycle. In this episode of ASTROMAN: The Dark Sky Guardian, we learn how to safely observe sunspots and solar flares, and why studying solar activity helps protect satellites, power grids, and even predicts auroras. “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,...
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EVSN - The Sky is Falling! Space Junk 411
The 365 Days of Astronomy
In this episode, we take a closer look at how the increasing number of rockets and satellites going up mean there is also an unfortunate increase in the space junk coming down. We also cover dramatic weather, stars dying and disappearing, and update you on Maven and Paranal Observatory. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too! Every bit helps! Thank you! ------------------------------------...
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Actual Astronomy - Owning 20+ Telescope with Richard Navarette
The 365 Days of Astronomy
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. Episode 522. Continuing on with our 2026 resolution we have a special guest listener joining us today. Richard Navarette is a long time amateur astronomer from the San Francisco Bay Area where he has been instrumental in getting people out observing through The Astronomy Connection, well known as “TAC”. Richard has owned 20+ telescopes over the years and while he has enjoyed viewing through many large instruments his personal collection has mostly been focused on portable, affordable gear. We've...
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UNAWE Space Scoop - Cotton Candies Floating in Space?
The 365 Days of Astronomy
Astronomers just found something cool! Typically, most Sun-like stars host planets between the size of Earth and Neptune called ‘super-Earths’ or ‘sub-Neptunes’. These planets often orbit their stars even closer than Mercury orbits our Sun. They’re mostly rocky super-Earths or they have a thick atmosphere and a rocky core and are sub-Neptunes. They’re the most common types of planet found in our Galaxy. And yet, astronomers weren’t sure exactly how these planets formed. So yeah, they found something cool! We've added a new way to donate to 365 Days of...
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Ask A Spaceman Ep. 266: Is the Universe Made of Math?
The 365 Days of Astronomy
Hosted by Dr. Paul M. Sutter. Why is math so effective at describing the Universe? What is reality is made of math? What does it mean for us to be conscious beings in a mathematical structure? I discuss these questions and more in today’s Ask a Spaceman! Support the show: All episodes: Watch on YouTube: Read a book: Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey...
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Astronomy Cast Ep. 782: Luminous Fast Blue Optical Transients
The 365 Days of Astronomy
Hosted by: Fraser Cain () and Dr. Pamela L. Gay () Streamed live on Feb 13, 2026. Modern astronomy has found that the Universe can surprise us. Here’s one which astronomers have called Luminous Fast Blue Optical Transients. They’re kinda like supernovas, they’re kind of like gamma ray bursts, but they’re not like them. So what are they? In the distant Universe, are blue light flashes, bright and hard to understand. These objects, uncreatively named "Luminous Fast Blue Optical Transients," are just the kind of puzzle astronomers love. In this episode, we look at their discovery and our...
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Travelers in the Night Eps. 855 & 856: Planetary Defense & Big One
The 365 Days of Astronomy
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. From June & July 2025. Today's 2 topics: - In 2016 NASA created the Planetary Defense Coordination Office to manage the mission of finding, tracking, and studying asteroids and comets which could pose an impact threat to our home planet.The NASA documentary “Planetary Defenders” provides an excellent over view and can be streamed on the internet: - My Catalina Sky Survey teammate Vivian Carvajal was asteroid...
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NOIRLab - Mysterious Metallic Cloud Discovered Orbiting Mystery Object
The 365 Days of Astronomy
Sweeping winds of vaporized metals have been found in a massive cloud that dimmed the light of a star for nearly nine months. This discovery, made with the Gemini South telescope in Chile offers a rare glimpse into the chaotic and dynamic processes still shaping planetary systems long after their formation. In this podcast, Dr. Nadia Zakamska describes the discovery of this object, stemming from a mysterious dimming of a star, to the analysis of the gas cloud. Bios: - Rob Sparks is in the Communications, Education and Engagement group at NSF’s NOIRLab in Tucson, Arizona. - Dr. Nadia...
info_outlineFrom July 5, 2023.
A new asteroid has been discovered with an orbit that crosses our own planet’s orbit. In general, this object and Earth are very good and not trying to occupy the same space at the same time, and we’ve managed to coexist for a fair amount of time. We are going to have a close approach, however, in 2046, and for the first time in a long time, the potentially dangerous asteroids list actually gave us something to worry about. (This episode originally aired on television March 18, 2023.)
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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