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https://www.youtube.com/watch?v=jLdReWGjF5c&t=10s Streamed live on Feb 19, 2024. [My apologies for Fraser’s audio dropouts. We’re not sure how it happened as it wasn’t happening at his studio. Audio is a black art, IMHO. Rich) Last week we learned that Russia might be planning nuclear weapons to take out satellites in space. What is the current and future possibility of weapons in space and what are the treaties designed to prevent them?   This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit (rhymes with right) 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 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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

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: - We will probably never know the details of the collision that put my Catalina Sky Survey teammate Carson Fuls' recent discovery, 2016 HD3, on its current path. What we do know is that Carson's new space rock is about 25 feet in diameter and in the next 100 years will make 53 close approaches to planet Earth and 12 to our sister planet Venus. In 2016 this small object passed to near both the Earth and our Moon. It's 322 day orbit around the Sun can someday bring it to about a quarter of the Moon's distance from where we live. - More than 25 years ago Voyager 1 took a picture of the Earth from beyond Pluto's orbit. This image shows our home planet to be an isolated tiny pale blue dot floating in the vastness of space.   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

Hosted by Dr. Jacinta Delhaize & Dr. Daniel Cunnama. With Prof Mirjana Pović, Prof Vanessa McBride, Dr. Priscilla Muheki and Prof Carolina Ödman.   In this week’s episode we are joined by fours members of the board of the recently established African Network of Women in Astronomy (AfNWA).   AfNWA is an initiative that aims to connect women working in astronomy and related fields in Africa. AfNWA aims to guarantee the future participation of girls and women at all levels in astronomy and science developments in Africa.    Their main objectives are improving the status of women in science in Africa and using astronomy to inspire more girls to do STEM (Science, Technology, Engineering and Mathematics).   Mirjana, Vanessa, Priscilla and Carolina chat with us about how AfNWA came about and some of the exciting achievements thus far!   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

From Wednesday, January 24, 2024. If you take a compass and follow its pointy little needle, you will end up in Northern Canada but not at the North Pole. If you have a boat, you'll end up on Ellesmere Island wondering where Santa is hiding.    The fact that the rotational north pole of the Earth and the magnetic pole of the Earth don’t align means that if you want to actually get to the Earth’s rotational North Pole - the one the pole sticks out of on your globe - you have to look up corrections online and veer a little bit in whatever direction the correction happens to be at the moment. And if you are catching this show sometime far, far in the future, then Ellesmere Island, where that is true in early 2024, is likely no longer true.   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

Expanding and lifting. The Hubble – Lemaitre Law: v=H0D V (Velocity) equals D (distance) times H-nought (the Hubble-Lemaitre constant).   This formula describes the relationship between the distance of galaxies and the velocity at which they are receding from us. Put simply it says the farther away a galaxy is, the faster it is receding.   This relationship has been widely accepted as evidence that the Universe must be expanding, with the notable exception of Edwin Hubble who was happy there was a relationship between the redshift of galaxies and their distance, but never really accepted it as evidence that the whole Universe was expanding.   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

Recorded 30 November 2023. In a new study published in the Astronomical Journal, researchers used the known population of exoplanets to set better thresholds for planetary effects on signals from ETIs (extraterrestrial intelligences). Megan Grace Li, a Ph.D. student at UCLA in UCLA SETI, conducted this research as a National Science Foundation Research Experience for Undergraduates intern in the Breakthrough Listen project at the Berkeley SETI Research Center. Join Megan as she chats with Beth Johnson about her work and what it means for the future of SETI searches.   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

Why is it so hard to get a picture of the Milky Way? How much of our galaxy have we mapped? What the heck is a “barred spiral” and what does that have to do with our core? I discuss these questions and more in today’s Ask a Spaceman!   This episode is sponsored by BetterHelp. Give online therapy a try at betterhelp.com/spaceman and get on your way to being your best self. Visit BetterHelp to get 10% off your first month!   Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Follow on Twitter: http://www.twitter.com/PaulMattSutter Read a book: http://www.pmsutter/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, Barbara K, Alberto M, Duncan M, Corey D, Naila, John S, Joshua, Scott M, Rob H, Louis M, John W, Alexis, Erin J, Gilbert M, Valerie H, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Maureen R, Stace J, Stephen S, Stephen J, Joe R, David P, robert b, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Sarah K, Richard S, Sam R, Thomas K, James C, Syamkumar M, Homer v, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, Aissa F, Marc H, Scott M, Avery P, Farshad A, Michael W, Kenneth D, Gary K, Paul G, David W, dhr18, Ron D, Lode S, Alyssa K, Roger, Bob C, Simon G, Red B, Stephen A, James R, Robert O, Lynn D, Allen E, Michael S, Jordan, Reinaldo A, Jessica M, Patrick M, Amy Z, Sheryl, John G, David W, Jonathan S, Sue T, Josephine K, Chris, Jules R, P. S, Michael S, Erlend A, and James D!   Thanks to Cathy Rinella for editing.  Hosted by Paul M. Sutter.   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

https://www.youtube.com/watch?v=1cDRgJuuSec Streamed live Feb 12, 2024. Last week we talked about sample return missions from the Moon and Mars, but scientists have retrieved samples from other objects in the Solar System, including comets and asteroids. What does it take to return a piece of rock from space, and what have we learned so far?   This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit ( rhymes with right) 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 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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

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: - Covered by a blanket of lunar soil to protect it from BB sized meteoroids arriving a gunshot speeds, a village is nestled in a large crater on our moon. The individual structures are connected together by tunnels. The site was chosen to access the water and metals which were brought to the site by asteroid impacts. - Blinded by inappropriate outdoor night lighting, much of humanity is now unaware of the rich beauty of the Universe which surrounds them. To see sights which have inspired countless generations of lovers, poets, scientists, authors, artists, mathematicians, and dreamers people must travel out of their artificial light domes to one of the few remote locations which offer the opportunity to view the natural night sky.   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

Paul Hill and Dr. Jenifer “Dr. Dust” Millard host.  Damien Phillips, John Wildridge and Dustin Ruoff produce. This month we explore:  - The exciting announcements from the European Space Agency as they outline their new missions for the 2030s.  - LISA, a space based gravitational wave detector and… - EnVision, a Venus mission that will map the surface and under-surface of that planet in unprecedented detail.    We have the usual skyguide, a chat about recent lunar missions and emails from the listeners.    www.awesomeastronomy.com Bio -  Awesome Astronomy explores the frontiers of science, space and our evolving understanding of the universe.  Join Paul & Jeni for informative and fun astronomy programmes dedicated to space and astronomy news and monthly podcast extras covering hot topics and special interviews in the world of science and astronomy.    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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

From October 25, 2023. Around our parent collaboration, CosmoQuest, Halloween is, hands-down, the most beloved season of the year. Costumes are worn. Yards are decorated. We are here for all the strangers that knock on our door - the weirdos, the witches, and the oh-so-very-many werewolves - and there will be as much candy as we can afford given out. We know we are not the only ones.    With about a week to go, we know that any day now, NASA, ESA, ESO, and others will begin releasing their spooky season images. There will be nebulae cropped with the contrast adjusted just so to reveal witches' hats, and others rotated to reveal ghosts and maybe - I can hope - a goblin or two.   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! ------------------------------------ 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 info@365DaysOfAstronomy.org.

Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com The Actual Astronomy Podcast presents Astronomy Books. In this episode we discuss some of the best astronomy books with City Lights Bookstore owner Chris Wilcox. From poetry to the Milky Way we cover our favourite books on the astronomical table.   What are some of the titles that you’ve enjoyed and could recommend to our listeners? * Arthur Koestler: The Sleepwalkers, in which Western civ gets stuck in geocentricity for 1500 years * Thomas Kuhn: The Structure of Scientific Revolutions. Some dated conventions, but a fascinating sociological study of avant-garde science. This classic gave us the now-overused term “paradigm shift.” * Michael Hoskin: The History of Astronomy: A Very Short Introduction * Dava Sobel: The Planets * Leslie C. Peltier Starlight Nights: The Adventures of a Star-Gazer * Ronald Florence: The Perfect Machine: Building the Palomar Telescope * Robert Zimmerman: The Universe in a Mirror: The Saga of the Hubble Space Telescope and the Visionaries Who Built It * Emily Levesque: The Last Stargazers: The Enduring Story of Astronomy's Vanishing Explorers. A young professor’s assemblage of adventures -- her own, plus accounts gleaned from colleagues -- from the days when astronomers would travel to the big, remote observatories to capture their data.   What are some popular books on planetary science, astrophysics, and cosmology that are high up on your list of must reads? * Mike Brown: How I Killed Pluto and Why It Had It Coming * Adam Frank: The Little Book of Aliens * Philip Plait: Under Alien Skies: A Sightseer's Guide to the Universe * Becky Smethurst: A Brief History of Black Holes * Carlo Rovelli: White Holes * Moiya McTier: The Milky Way: An Autobiography of Our Galaxy   I think you even mentioned some poems? * Benjamin Labatut: When We Cease to Understand the World and The MANIAC * Kim Stanley Robinson: Galileo's Dream * Tracy K. Smith Life on Mars: Poems   What makes a really good observing reference? * Leslie C. Peltier, in his classic Guideposts to the Stars * Walter “Scotty” Houston (his bio reminds us that he was an editor and English teacher by profession) * Stephen James O’Meara, e.g., his Messier Objects 2nd ed. * Sue French, in her inimitable continuation of Houston & O’Meara’s Deep Sky Wonders * Howard Banich (his recent S&T article on M33 was his 33rd column for the magazine, so I hope he eventually pulls his writings and brilliant sketches into a bound collection)   What are some other useful books? * Burnham's Celestial Handbook in three volumes * Nightwatch (Dickinson, et al.) * Harrington: Touring the Universe through Binoculars * Hill: A Portfolio of Lunar Drawings   What do you keep handy at your desk? * Pasachoff: Peterson Field Guide to the Stars and Planets * Mitton: A Concise Dictionary of Astronomy  * Edgar: RASC Observer’s Handbook (current U.S. ed.) * Beckett: RASC 2024 Observer’s Calendar   What are some good books to have in the field? * Interstellarum Deep Sky Atlas, Field Edition* (Stoyan & Schurig) * Sky Atlas 2000.0: Deluxe Edition  (Tirion & Sinnott) * Rukl: Atlas of the Moon * Turn Left at Orion (Consolmagno & Davis)  * The Messier Observer’s Planisphere* from Celestial Teapot   >46-cm diameter   What are a few indispensable texts from your collection: * Swanson: NexStar User's Guide II * Menard: New Perspectives on Newtonian Collimation * Brown: All about Telescopes * Telescopes, Eyepieces, and Astrographs: Design, Analysis, and Performance of Modern Astronomical Optics (Smith et al.) * Astronomical Sketching (Handy et al.)   What books do you dip into when you need a jot between sessions under the stars.  * Freistetter: The Story of the Universe in 100 Stars * Any of those splashy coffee table books loaded with astrophotography. While they may not represent visual as