The 365 Days of Astronomy

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 astronomy's faint, mostly monochrome experience, they are stunning. And, as the imagers tell us, those long integrations and enhanced colors are scientifically useful. * Cathay LeBlanc & David Chapman:  Mi'Kmaw Moons: Through the Seasons. A picture book about Mi’Kmaq cosmology combines rich information and great storytelling with Loretta Gould’s gorgeous illustrations. — Many astronomy-related books for kids are too delightful to let the youngsters have all the fun. Plucking a few stars from this constellation:  * Gaiter: The Mysteries of the Universe A lavish, outward sweeping reference * McCulley: Caroline’s Comets A sweet, pictorial biography of C. Hershell * Becker: You Are Light  Spectra are for babies! * 100 Poems: Outer Space, edited by Midge Goldberg   From the Cambridge series   Are there any sentimental books in your library: * Norton's Star Atlas (Epoch 1950) The stars have processed into a new epoch since these gate-fold pages were bound in boards of blue cloth. So it’s dated, and those boards are a bit warped, but I treasure this volume because it originally belonged to Col. Carl Hill, a kindly next-door elder when I was a kid. He was like a surrogate grandfather and the astronomy mentor who might’ve been had I shown interest at the time. He and his wife sold my folks the land where I grew up (and where I live). He had a backyard pier and enlisted my dad, an amateur machinist, to help him fabricate a wedge. There’s a sort of poignant regret I feel when holding this book.    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 16 November 2023. On Earth, we understand how and where earthquakes happen due to the discovery of plate tectonics – the continental crust’s creation, movement, and destruction. However, when astronauts placed seismometers on the lunar surface during NASA’s Apollo mission era, those instruments recorded quakes on the Moon.    In the 1970s, the Viking landers also recorded quakes on the surface of Mars. Since neither of these worlds has plate tectonics, scientists set about collecting more data to understand the phenomena, which led to the recent NASA InSight lander.    Now, a new paper in Geophysical Research Letters explains how the largest recorded seismic event on Mars provided evidence for a different sort of tectonic origin — the release of stress within the Martian crust.   Join communications specialist Beth Johnson as she talks to lead author Dr. Benjamin Fernando about the results of an amazing international collaboration that led to this new discovery.    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 July 29, 2023. Aside from our own solar system, one of the most studied stellar systems lies about 40 light-years away in the direction of the constellation Aquarius. Using ground and space based telescopes like Spitzer, Kepler, Hubble, and, now, the James Webb Space Telescope, astronomers are looking hard at the seven rocky exoplanets orbiting the TRAPPIST-1 star.   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=ws9kQ_vkYtM Streamed live on Feb 5, 2024. We’ve sent robots to other worlds, but the amount of science we can deploy to another planet can’t compare with the vast science labs we have on Earth. That’s why more and more missions are for a sample return, bringing pieces of alien worlds back to Earth, where we study them with proper equipment.   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: - The moon is being hit by objects in the present epoch. Fresh lunar craters tell us about objects which enter the Earth-Moon system. - Jupiter protects us as well as directs some objects our way. Jupiter, the king of our solar system, has provided us with a place to stand and air to breathe.   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.

Journey Through the Universe — a partnership between the International Gemini Observatory, operated by NSF’s NOIRLab, and the Hawaiʻi Department of Education Hilo-Waiākea Complex Area — celebrates 20 years of cosmic exploration with Hawai‘i students and the community. In this podcast, the Journey Through the Universe staff looks back at the origins of the program, the challenges it has faced, and what their hopes for the next 20 years.   Bios:  - Rob Sparks is in the Communications, Education and Engagement group at NSF’s NOIRLab in Tucson, Arizona. - Emily Peavey, Education and Engagement Senior Assistant. - Peter Michaud, Education and Engagement Manager. - Leinani Lozi, Hawai’i Education and Engagement Manager. - Janice Harvey, former Hawai’i Education and Engagement Manager. Links: NOIRLab Press Release: https://noirlab.edu/public/news/noirlab2402/  Journey Through The Universe Website: https://noirlab.edu/public/education/journey-through-the-universe/ NOIRLab social media channels can be found at: https://www.facebook.com/NOIRLabAstro https://twitter.com/NOIRLabAstro https://www.instagram.com/noirlabastro/ https://www.youtube.com/noirlabastro   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.

In this episode, we look at what tree rings can teach us about past earthquakes, and how well machine learning can identify life, like trees, from carbon-rich materials that were never alive to distant galaxies and spinning black holes. We even take a deep dive into anti-matter, but not a literal deep dive… just a conceptual deep dive.   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.

More star stuff. – Do other stars have sunspot activity cycles like the Sun does? Yes, although we say starspots rather than sun spots, when referring to any star other than the Sun. The Sun has an approximately 11 year cycle defined by the number of observable sunspots – which moves from a minimum number to a maximum number over 11 years, and then moves back to a minimum number over another 11 years – hence some people prefer to say it’s actually a 22 year cycle. – So why are magnetars magnetic? So, keen listeners will recall that a magnetar is a type of neutron star, all of which do have strong magnetic fields, but magnetars have crazy strong magnetic fields, sufficient to spaghettify sub-atomic particles and polarize a vacuum if you can believe it – not to mention understand it.   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.

Join us for an exclusive SETI Live event, as we take a first look at the next-generation telescope from Unistellar - the ODYSSEY.   First introduced in 2017 with their eVscope, Unistellar has been a prominent collaborator with the SETI Institute since 2019. eVscopes have been used by schools, colleges, and the public to observe exoplanets, supernovae, and asteroids in a truly global network that continues to grow.   Dr. Simon Steel, Deputy Director of the Carl Sagan Center, and Dr. Franck Marchis, Co-founder of Unistellar and citizen science director at the SETI Institute, will talk about the technology of the new telescope, insights on how such a telescope is beta tested, and how the ODYSSEY will dramatically impact citizen and amateur astronomer’s contribution to cutting edge scientific research. We’ll take a tour of this beautiful instrument, inside and out, and look at some early results and images. (Recorded 10 January 2024.)   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.

How do we achieve nuclear fusion in the laboratory? What are some experiments that are trying to achieve fusion power generation? Why is it so difficult? 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   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, Ken L, 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, and Erlend A!   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=RfV2xMyUoI0 Streamed live on Jan 30, 2024. We’re so familiar with NASA’s exploration efforts in space, but you might be surprised to learn that China launches almost as many rockets as the US. They’ve got their own space exploration program that could soon bring humans to the surface of the Moon. Let’s give a brief overview of China’s space exploration plans.   This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle 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: - Rocky metallic asteroid can stand the heat. A block and a half sized asteroid, 2016 GX221, makes visits to Mercury, Venus, Earth, Mars, and Jupiter. - Jupiter and Saturn helped to produce where we live. Our home planet was formed after a period of chaos in the solar system. Today our solar system is a pretty calm place. However, meteorites we find on Earth as well as the cratering we observe on our Moon, Mercury, Mars, and other bodies suggest that our solar system was born wild and stayed that way for a while. There is also the puzzling fact that our sparsely packed inner solar system is very different from the densely packed, close in, planetary systems which have formed about nearby stars.   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.