H’ad Astra Historia - Ep. 108: Put a Ring On It
The 365 Days of Astronomy
Hosted by Loretta Cannon for the AAS-HAD. Historical Astronomy Division of AAS Today’s guest: Dr. Linda Spilker (JPL Fellow and Senior Research Scientist) discusses the Cassini mission to Saturn (1997-2017) that she worked with for 30 years, the last 10 as Project Scientist. 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...
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Pamela Gay - ’Twas The Observer’s Day Before Christmas
The 365 Days of Astronomy
Hosted by Dr. Pamela Gay. Description: Pamela tells a Christmas tale for astronomers one and all. With apologies to Clement Clarke Moore. Bio: Dr. Pamela L. Gay is co-host of the popular AstronomyCast podcast. Additionally, she created Astrosphere New Media Association, a nonprofit organization that promotes science through internet based technologies, in order to keep many of the IYA projects alive. 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...
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Exoplanet Radio - Ep. 31: Astronomers Confirm Proxima Centauri b is Not A Transit Exoplanet
The 365 Days of Astronomy
From September 6, 2023. Hosted by Tony Darnell. Astronomers have recently concluded an observation study of the closest exoplanet to Earth, Proxima Centauri b and found that the planet does not transit its star. These observations settle a question that astronomers have been asking since the exoplanet's discovery in 2016 using the radial velocity method. 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...
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Astronomy Cast Ep. 738: Looking Ahead to 2025
The 365 Days of Astronomy
Streamed live on Dec 16, 2024. What can we hope (or dread) to see in 2025? Last week we talked about the 2024 strangeness. Now we’re gonna talk about the upcoming space stories for 2025 that we’re looking forward to. It’s a nice mix of new rockets, new missions and new fly-bys. Hosted by: Fraser Cain and Dr. Pamela L. Gay 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: Andrew Poelstra, BogieNet, Brian Cagle, David, David Truog, Ed, Gerhard, Schwarzer, Jeanette...
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Travelers in the Night Eps. 769 & 770: Green Comet & Hycean World
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. Today's 2 topics: - Given the effects of climate change today who can predict what planet Earth will be like when C/2023 P1(Nishimura) comes back near our home planet in approximately 2455 AD. - Hycean Worlds, with masses between Earth and Neptune which have thin hydrogen rich atmospheres above a liquid water ocean may be very common in our neighborhood of the Milky Way. They could be an abode of life. We've added a...
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Cheap Astronomy - Dear CA # 113: The Planets
The 365 Days of Astronomy
We’ve plundered Earth, what’s next? Dear Cheap Astronomy – If we did colonize the Solar System, what would we do with the different planets? It remains to be seen if we will spread out across the solar system. While we starting to feel more confident about avoiding a mass extinction asteroid strike, a super-volcano eruption could just as easily end civilization as we know it. There’s also the more mundane scenario of where our population keeps growing, we run low on resources and then fight a bunch of wars over what’s left, pretty-much trashing what’s left of the ecosystem in the...
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EVSN - Searching for Dark Energy in Black Holes
The 365 Days of Astronomy
From December 11, 2024. From baby planets to ancient black holes, let's look at the week's space news, including the discovery of a planet around a still-forming star, our Sun's massive outbursts as measured by tree rings, a new catalog of white dwarfs in binary systems, and a deep dive into the possibility that black holes create dark energy. As always, we'll also bring you 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. Just visit: and donate as much as you can! Share the podcast with your...
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Actual Astronomy - Observing Lists & Eyepiece Cleaning
The 365 Days of Astronomy
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. The Actual Astronomy Podcast Episode 464 presents Observing Lists and Eyepiece Cleaning. In this episode we talk about a few observing lists Chris is working on for the RASC Observer's Handbook and Calendar plus some Wide Field Wonders. Shane details his cleaning process for eyepieces. My little counterweight arrived! Bought a semi-truck snow brush to clear snow from the rails Sadly where the roll off rails enter the observatory freezing rain and snow accumulate behind the wheels, builder can fix...
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Awesome Astronomy - Re-examining Uranus
The 365 Days of Astronomy
Paul Hill and Dr. Jenifer “Dr. Dust” Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. This month we look at new old data about Uranus, a possible second dinosaur asteroid the first image of a star in another galaxy and the image of a new planet forming. Plus sky and launch guides and a chat about Christmas present ideas! 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...
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Ask A Spaceman Ep. 238: What Makes the Sun’s Corona So Dang Hot?
The 365 Days of Astronomy
How can the solar corona be hotter than the surface? What has the Parker Solar probe learned so far? What do magnetic fields have to do with all this? I discuss these questions and more in today’s Ask a Spaceman! This episode is sponsored by BetterHelp. Give online therapy a try at and get on your way to being your best self. Visit BetterHelp to get 10% off your first month! Support the show: All episodes: Follow on Twitter: Read a book: Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE...
info_outlinehttps://www.youtube.com/watch?v=6H0qsqZjLW0
The Most Efficient Propulsion System Out There
From May 15, 2018.
People always ask me why we’re stuck with chemical rockets. Seriously, exploding a bunch of hydrogen or kerosene is the best we can do?
Good news, there are other, exotic science fiction-sounding propulsion systems out there which use electromagnetic fields to accelerate atoms, allowing their spacecraft to accelerate for months at a time.
I’m talking about ion engines, of course, and several spacecraft have already used these exotic thrusters to perform some of the most amazing missions in the exploration of the Solar System.
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