From March 13, 2025.

Let's take a fast-paced journey thru all that's new in space and astronomy, including DESI takes a census of central black holes, star formation in clusters, and updates on Europa Clipper, along with a deep dive into Mars science, and tales from the launch pad.

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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].

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. [email protected]

The Actual Astronomy Podcast presents The Observer’s Calendar for April 2025. In this episode we talk about how to see the Moon as it pairs with Pleiades, Mars, Smallest full moon on April 13th then pairs with Antares. Don’t miss the Lyrid meteor shower and catch Venus, Moon, Saturn and Mercury in the morning sky. We also discuss some stars and deep sky objects including globular cluster M68 and a few galaxies like M104 and M83.

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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].

Ron Rosano flew into space on a suborbital flight with Virgin Galactic on October 6, 2023, and has pursued a passion of space travel and astronomy outreach with schools in with the public since 1995.

In awe of the starry sky since he was a child and inspired by the Apollo Moon landings, Ron has closely followed NASA and other space missions for as long as he can remember. He has parlayed this passion into extensive astronomy education outreach as an informal educator for more than 25 years, meeting with more than 220 schools in 15 countries. Ron is the creator and editor of the Suborbital Flight Journal, a complete record of all human suborbital flights. 

Since 2008, Ron has conducted more than 70 events as a NASA Solar System Ambassador, giving presentations on Mars rovers, the James Webb Space Telescope, the Apollo Moon landings, and more. Ron serves on the advisory council of the Astronomical Society of the Pacific, the board of advisors of the Human Space Program and the Board of Directors of the Nepal Youth Foundation.  He works for a property management company and pursues interests in photography and jazz drumming.

Mike Simmons is the founder of Astronomy for Equity ( https://bmsis.org/astro4equity/ ). Others on the team, including people around the world in astronomy and space exploration, authors and philosophers, designers and artists and more will be added as the website is developed.

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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 13, 2023.

TRAPPIST-1e is a rocky, close-to-Earth-sized exoplanet orbiting within the habitable zone around the ultra-cool dwarf star TRAPPIST-1 approximately 40 light-years away from Earth in the constellation of Aquarius.

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https://www.youtube.com/watch?v=MimmxUqg05Q

Streamed live on Mar 24, 2025.

Hosted by: Fraser Cain and Dr. Pamela L. Gay

The Hubble Tension is a vexing problem, with astronomers measuring the expansion of the Universe at different points in its history and getting different results. Errors have mostly been ruled out, which leaves the potential for new physics. Has the strength of dark energy been changing over time? We thought Dark Energy was constant with time, but new results from DESI say maybe not, and honestly, if it wasn't constant the Hubble Tension would be a whole lot easier to solve.

SUPPORTED BY YOU!

This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. 

Thanks to: BogieNet, Stephen Vei, Jeanette Wink, Siggi Kemmler, Andrew Poelstra, Brian Cagle, David Truog, Ed, David, Gerhard Schwarzer, Sergio Sancevero, Sergey Manouilov, Burry Gowen, David Rossetter, Michael Purcell, Jason Kwong

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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

Today's 2 topics:

- A winter storm hit Mt. Lemmon, Arizona closing access to the observatory by blowing over trees and producing large snow drifts. After the Mountain Operations Crew cleared the road, my Catalina Sky Survey teammate Greg Leonard was able to make his way to the top and discover an asteroid which could be visited by human astronauts. Greg's new 120 foot diameter space rock, named 2017 BV93, spends most of its time between Earth and Venus as it orbits the Sun once every 346 days.

- Recently, my Catalina Team Captain Eric Christensen discovered a potentially hazardous 3,000 foot diameter asteroid, 2017 CH1. Asteroid hunters are discovering less than one asteroid of this size or greater per month. Eric's discovery, 2017 CH1, has an orbit which can bring it to about twice the Moon's distance from planet Earth. Although it will not come anywhere near Earth in the foreseeable future, asteroid hunters will continue to monitor 2017 CH1's orbit to make sure that it remains no threat to planet Earth.

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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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Telescopes are, in a way, time-travel machines to the distant past & faraway galaxies. The speed of light is the Universe’s speed limit.

Forget that 55 MPH thing.

186,000 miles per second is more like it!

Lightspeed is also the speed of gravity and electricity, so there’s that.

For example, it takes light from the Sun over 8 minutes to reach Earth, so the sunlight we feel on our faces is, on average, actually 8 minutes 25 seconds old. When astronomers use telescopes to look at galaxies in space, they find some that are close by and some that are farther away—that is, some that are younger and some that are very much older. 

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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 April 21, 2021.

A survey of the stellar nursery in the Orion Nebula Cluster provides evidence that stars compete for material and their size depends on what they gather rather than their initial core size. Plus, NASA mission updates, fast radio bursts, neutron stars, visible novae, and mountain building in the Andes.

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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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Today’s guest:  Dr. Jamie Rankin, Voyager Deputy Project Scientist, talks with us today about all things Interstellar. She is also an Associate Research Scholar and Lecturer in Space Physics at Princeton University. NASA-JPL continues to communicate with both Voyagers 1 and 2 as they explore interstellar space. Closer to home, IBEX and three soon-to-be-launched new spacecraft study the protective bubble of our star system from the inside, while also investigating our star’s ever-changing effect on Earth.

H’ad astra historia is the official podcast for the Historical Astronomy Division of the American Astronomical Society. We’re here to share stories from and about the people who study the stars, planets, and the cosmos. We’ll be hearing from individuals who not only study the history of astronomy, but also those who lived it, who were “in the room” during pivotal events within the last 50 years or so.  

Podcaster: 

Loretta Cannon (an AAS affiliate via Rose City Astronomers) is a science-and-word-nerd who really likes the stars. She quite enjoys working as HAD’s podcaster, bringing astronomy stories to you.

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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=RXtYUawd4AY

From Feb 14, 2020.

Hosted by Fraser Cain.

It’s hard to really wrap your mind around the vast distances between stars. The fastest spacecraft ever launched into an interstellar trajectory right now is Voyager 1. If it was directed at the nearest star, it would take tens of thousands of years to make the journey across the interstellar gulf.

Even so, groups like Breakthrough Starshot and Icarus Interstellar are working on plans right now to try and send spacecraft to other stars, ideally within our lifetimes.

But we can see how quickly technology is advancing all around us, from materials science to high energy physics, not to mention reusable rockets.

It seems reasonable to ask, should we invest in an interstellar mission now, or wait a few decades or even centuries for better technology to come along which could make the trip much shorter?

Watch Chris Hadfield's video:

https://www.youtube.com/watch?v=Y6woV3encOA

Andrew Kennedy’s paper:

https://www.researchgate.net/publication/260275150_Interstellar_Travel_-_The_Wait_Calculation_and_the_Incentive_Trap_of_Progress

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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].