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

Today's 2 topics:

- Recently Dr. Yossi Shvartzvald led a team which published their discovery of an Earth sized planet using microlensing in the Astrophysical Journal Letters. The newly discovered planet OGLE-2016-BLG-1195Lb orbits a small dim object about 13,000 light years from us. With only 7.8% of the Sun's mass the new planet's star may be a brown dwarf and not a star at all. At about the same distance from its star as we are from the Sun this new planet is likely to be an ice ball world colder than Pluto.

- In 2018 the NASA Transiting Exoplanet Survey Satellite nicknamed TESS will be launched and begin a two to three year mission to discover small Earth sized planets orbiting bright stars in the solar neighborhood.

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

Astronomers have long predicted that the cloud forming chemical should be found in the atmospheres of brown dwarfs and gas giants. Silane had eluded detection until now. In this podcast, Dr. Aaron Meisner recounts how silane was discovered in the atmosphere of a brown dwarf nicknamed “The Accident”. The Accident (WISEA J153429.75-104303.3) was discovered by citizen scientist Dan Caselden, who was using an online program he built to find brown dwarfs in NEOWISE data.

Bios: 

Rob Sparks is in the Communications, Education and Engagement group at NSF’s NOIRLab in Tucson, Arizona.

Aaron Meisner is an astronomer at NSF NOIRLab affiliated with the Vera C. Rubin Observatory, and also a 2025-2026 Radcliffe Fellow at Harvard University. He specializes in building astronomical maps using large data sets at visible and infrared wavelengths.  These maps are used to search for moving celestial objects, like new neighbors to the Sun and hypothesized planets in the far reaches of our own solar system. To this end, Aaron co-founded the popular Backyard Worlds: Planet 9 citizen science project and the Backyard Worlds: Cool Neighbors project.

Press release: https://noirlab.edu/public/news/noirlab2526/?nocache=true&

https://www.jpl.nasa.gov/images/pia24578-an-accidental-discovery/

https://aasnova.org/2021/07/02/observing-the-accident-an-enigmatic-brown-dwarf/

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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

The Gemini South Observatory, using adaptive optics, has captured stunning new images of meandering stellar jets. The sidewinding appearance is likely caused by gravitational influences of nearby companion stars. Plus, exoplanet news and a review of a Canon lens.

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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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Awesome Astronomy - The Search for Aliens with Seth Shostak

https://www.youtube.com/watch?v=Bj6Wfv1djf0

Paul Hill, Ralph Wilkins and Dr. Jenifer “Dr. Dust” Millard host. 

Damien Phillips, John Wildridge and Dustin Ruoff produce.

From Jan 3, 2022.

Our chat with Dr. Seth Shostak from our live show to ease the boredom of covid lockdowns. 

We talk about:

• The latest in the search for alien signals.

• Using the large New Mexico telescope array to search for ET.

• How ancient seafaring and watchmaking nations make good astronomers.

• Scanning every known exoplanet for alien signals.

• Which is going to be the most exciting telescope, the James Webb Space Telescope or the Square Kilometre Array?

• What is the most exciting discovery we can expect from the James Webb Space Telescope and the Square Kilometre Array?

• How we will find hints of alien life.

Seth Shostak is an author and senior astronomer for the SETI Institute (Search for Extraterrestrial Intelligence). Seth hosts SETI's weekly radio show/podcast Big Picture Science and regularly appears on radio, TV and anywhere he can spread the astronomy word.

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

https://www.youtube.com/watch?v=Q41hLHcKyUM

From Mar 21, 2018.

Have you ever wondered how those amazing pictures of space are gathered? Which are photographs, which are illustrations, and which are total fakes?

[Editor’s note: You’ll have to go to the YouTube link above to see the photos.]

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Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

How to smash a particle.

How do particle colliders work? What kinds of energies are we talking about? Are there any uses for colliders except for physics experiments? 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, 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 D, Michael P, Naila, Sam R, Joshua, Scott M, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, Lisa R, Kevin B, Aileen G, Steven W, Deb A, Michael J, Phillip L, Steven B, Mark R, Alan B, Craig B, Mark F, Richard K, Stace J, Stephen J, Joe R, David P, Justin, Sean M, Tracy F, Ella Finkel, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Tim Z, Linda C, The Tired Jedi, Lode D, Bob C, Red B, Stephen A, James R, Robert O, Lynn D, Allen E, Michael S, Reinaldo A, Sheryl, David W, Chris, Michael S, Erlend A, James D, Larry D, Karl W, Den K, Tom B, Edward K, Catherine B, John M, Craig M, Scott K, Vivek D, Barbara C, Brad, Azra K, and Steve R!

Hosted by Dr. Paul M. Sutter.

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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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https://www.youtube.com/watch?v=kXkqLQ1oBk8

End-of-Life Planning for Your Spacecraft!

Streamed live October 1, 2025.

Your spacecraft has reached the end of its mission. You’ve done everything you can to keep it operational, but now it’s time to say goodbye. How do space agencies deal with spacecraft to shut them down gracefully, protect future missions and life on other worlds. So, the time has come to see your mission across the Rainbow Bridge. How exactly do you say goodbye? Let's discuss. 

Support our shows through https://Patreon.com/AstronomyCast

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

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:

- When a fleet of interstellar spaceships leaves our solar system for a planet circling a nearby star the most important of all of the riches that human explorers will carry with them will be libraries of our planet's DNA and the seeds of plants. They are the connection between past life, the inorganic world, and future life.

- When I discovered 2014 JO25 with the NASA funded Catalina Sky Survey's 60 inch telescope on May 5, 2014, it appeared as a single point of light as it moved past us. As 2014 JO25 approached the Earth from the direction of the Sun in 2017, no-one had any idea that it is really a double asteroid system nearly a mile in diameter.

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

Paul Hill and Dr. Jenifer “Dr. Dust” Millard host. 

Damien Phillips, John Wildridge and Dustin Ruoff produce.

October Part 1.

Paul & Jen chat about the big submerged crater off Yorkshire, the return of the ozone hole, NASA’s apparent decline, Astro Camp and the several comets we have on tap for October & November! Bit of a mixed bag, really…

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

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------------------------------------

Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

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------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

From September 17, 2025.

In this week’s episode, we tell the story of a Giant Blue Star that made the terrible, terrible mistake of trying to nibble on its more evolved sibling; it’s black hole of a sibling. Folks, don’t eat the dark holes in spacetime. We also look at this week’s news, including lumpy planets, forming planets, asteroids getting up close and personal, and how Leopard spots are in style for life hunting Mars Scientists. We also have 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. 

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------------------------------------

Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

http://cosmoquest.org/Donate This show is made possible through your donations. 

Thank you! (Haven't donated? It's not too late! Just click!)

------------------------------------

The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu

Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].