Weekly Space Hangout - Why Hello Sag A* - It's Nice to Finally See You, with Dr. Lia Medeiros
Release Date: 05/27/2022
Ask A Spaceman Ep. 223: Why is it So Hard to Return to the Moon?
The 365 Days of Astronomy
If we went to the Moon already, why can’t we go back so easily? What technology have we lost? What are we trying to do differently? 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...
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Astronomy Cast Ep. 718: Galaxy Series - Dwarf Galaxies
The 365 Days of Astronomy
Streamed live on Apr 30, 2024. It’s time to begin a new mini-series, where we’ll look at different classes of galaxies. Today, we’ll start with the dwarf galaxies, which flock around larger galaxies like the Milky Way. Are they the building blocks for modern structures? This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela We've added a new way to donate to 365 Days of Astronomy to support editing,...
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Travelers in the Night Eps. 727 & 728: Dust Moons & Space Weather
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: - In a dance of unequal partners the Earth and Moon orbit a common center of gravity which itself travels about the Sun. Leading and trailing the moon's twisted path by 60 degrees, are the L4 and L5 Lagrange points, where gravitational forces create a bowl in space time in which an object will remain until it is disturbed.The discovery of two large ghostly neighbors approximately 65,000 by 45,000 miles in...
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Last Minute Astronomer - May Episode
The 365 Days of Astronomy
May of 2024: With April being SUCH a packed month of events that were dependent on precise timing, May brings us reliable sights with slow-rolling changes. Mercury, Mars, Saturn, and the Moon all dance in the morning twilight all month as we gear up for Spring and Summer constellations. I’m Rob Webb, your Last Minute Astronomer, bringing astronomy to normies and nerds, with little time to spare. We’ll start with where the naked eye planets are this month, move on to the lunar phases, and finish up with a calendar of events, so you can plan ahead better than me. ...
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EVSN - Catch the (Alien) Rainbow
The 365 Days of Astronomy
From Thursday, April 25, 2024. As scientists discover and explore the atmospheres of more and more planets orbiting stars other than our Sun, we are learning that if you can imagine it, it probably exists. In a new paper discussing the planet WASP-76b, researchers describe what appears to be a giant iron glory in the atmosphere of another world: a circular rainbow, and it's not caused by refracted starlight! 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...
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Actual Astronomy - The Observers Calendar for May
The 365 Days of Astronomy
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. The Actual Astronomy Podcast presents The Observer's Calendar for May 2024. In this episode we’ll talk about: - A meteor shower, - Mercury in the morning sky lines up with other planets and - Pallas at opposition. 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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SETI Live - Dante Lauretta, “The Asteroid Hunter”
The 365 Days of Astronomy
Recorded live 19 March 2024. A tale of destiny and danger, The Asteroid Hunter chronicles firsthand the high-stakes OSIRIS-REx Asteroid Sample Return Mission, narrated by Principal Investigator Dr. Dante Lauretta. It offers readers an intimate glimpse into the riveting exploits of the mission and Dr. Lauretta's wild, winding personal journey to Bennu and back. Peeling back the curtain on the wonders of the cosmos, this enthralling account promises a rare glimpse into the tightly woven fabric of scientific exploration, where technical precision converges with humanity’s profound...
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H'ad Astra Historia Ep. 102: Egyptian Star Clocks
The 365 Days of Astronomy
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. Today’s guest is Dr. Luna Zagorac, who talks about Egyptian Star Clocks. Dr. J. Luna Zagorac Astrogen – The Astronomy Genealogy Project ...
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Astronomy Cast Ep. 717: Understanding the Ages of Distant Cosmic Objects
The 365 Days of Astronomy
Streamed live on Apr 22, 2024. How old is that star? That planet? That nebula? Figuring out the ages of astronomical objects is surprisingly challenging. Fortunately, astronomers have developed a series of techniques they can use to work out the ages of stuff. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and...
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Travelers in the Night Eps. 725 & 726: Mtn Ops & Close Space Rocks
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: - My team, the Catalina Sky Survey, would not find a single asteroid without Steward Observatory's Mount Lemmon Operations, or Mtn Ops for short. Bottom line is that Mtn Ops does whatever it takes to make our Asteroid Hunting facilities continue to function. - Since 1900 there have been 11 close approaches by asteroids larger than 300 feet in diameter. One of them, the Tunguska Object was about 400 feet in...
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Special Guest: On May 12th, 2022, the Event Horizon Telescope Collaboration released the first-ever direct image of Sagittarius A*, the black hole at the center of our galaxy. Tonight we are very pleased to welcome Dr. Lia Medeiros, a member of the EHT Collaboration, to the WSH. If you watched the NSF's streaming Q&A session following their press conference, you may recognize Lia as a member of the panel.
Dr. Lia Medeiros is currently an NSF Astronomy and Astrophysics Postdoctoral Fellow at the Institute for Advanced Study. In 2013, she completed her undergraduate education at the University of California-Berkeley in Physics and Astrophysics, and went on to earn her Masters and PhD (2019) in Physics from the University of California-Santa Barbara. After completing her classwork, Lia took advantage of the flexibility allowed by an NSF Graduate Research Fellowship and spent three years at the Steward Observatory at The University of Arizona and one year at the Black Hole Initiative at Harvard. Lia's PhD thesis was completed in collaboration with University of Arizona Professors Feryal Özel and Dimitrios Psaltis.
Lia was born in Rio de Janeiro, Brazil and spent most of her childhood living in several cities in Brazil and a few years in Cambridge, England. One of the highlights of her career has been having the opportunity to engage with the scientific community in Brazil. She has given multiple talks in Brazil to both academic and public audiences in both English and Portuguese. When not simulating supermassive black holes, Lia loves horseback riding, practicing aerial silks, salsa dancing, and almost any type of art, especially ceramics and drawing.
To learn more about Lia, visit her website (https://www.liamedeiros.com/) - you will absolutely be mesmerized by the movie on her landing page!
You can stay up to date with Lia and her research by following her on Twitter (https://twitter.com/astronolia) and Facebook (https://www.facebook.com/lia.medeiros....
Regular Guests:
Dr. Nick Castle ( @PlanetaryGeoDoc / https://wanderingsci.com/ )
Dave Dickinson ( http://astroguyz.com/ & @Astroguyz )
Pam Hoffman ( http://spacer.pamhoffman.com/ & http://everydayspacer.com/ & @EverydaySpacer )
This week's stories:
- The Tau Hercules meteor storm!
- Planets are in the morning…
- Artemis names to the Moon!
- Space Prize Global!
- 2 Globe at Night projects.
- Conjunctions!
- Jun 21: the Summer Solstice!
- NASA’s objectives for the Moon & Mars exploration.
- Boeing’s CST 100 StarLiner.
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.com/365DaysOfAstronomy 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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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].