Shows
The 365 Days of AstronomyTravelers in the Night Eps. 851 & 852: Scientists Views Odds of Aliens & Landing On MarsDr. 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 From May & June, 2025. Today's 2 topics: - In a recent paper published in Nature Astronomy entitled "Surveys of the scientific community on the existence of extraterrestrial life" Dr. Peter Vickers and his team of 10 co-authors report the results of their survey of the lead authors for the past 10 years in the top three astro-biological journals. These researchers sought to measure if their sample group of sc...
2026-02-0106 min
The 365 Days of AstronomyTravelers in the Night Eps. 331E & 332E: Asteroid Defense & Another Close OneDr. 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 From April 2025. Today's 2 topics: - In 2013 a 56 foot diameter space rock exploded over Chelyabinsk, Russia releasing the energy of 450 kilotons of TNT and filled local hospitals with some of the 1,500 people who were injured. Fortunately no one died. In 1908 a 200 ft diameter meteor exploded over a largely unpopulated region at Tunguska, Siberia knocking down trees over a 750 square mile area. If it had hit...
2025-09-1406 min
The 365 Days of AstronomyEVSN - Europa May Have Enough Heat for Seafloor VolcanoesFrom May 27, 2021. Jupiter's moon Europa, an icy world with a subsurface ocean that interests astrobiologists, may actually be hot enough to melt the interior rock and create volcanoes on the ocean floor. Plus, Ryugu, giant planets, fossil discoveries, Martian glaciers, and this week's What's Up! 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 th...
2025-09-0519 min
The 365 Days of AstronomyCheap Astronomy - Dear Cheap Astro Ep. 123: The Big QuestionsAsking questions and not always answering them. Is there hope? Well, sure. The question arises where the Drake Equation, aiming to quantify the likely number of detectable intelligent civilizations out there includes a term representing the inherent risk of any intelligent civilization destroying itself. It is just a risk, could be low could be high, but its wide acceptance as a part of the whole equation does suggest we have some pessimism about our own future. Could dark matter be black holes?
2025-09-0314 min
The 365 Days of AstronomyExoplanet Radio Ep. 41: Exoplanet Secondary Eclipses: Catching a Planet in the Shadowshttps://www.youtube.com/watch?v=RucWv35XwD0 Hosted by Tony Darnell. From Oct 11, 2023. Over the course of this show, we've talked many, many times about the Transit Method for detecting exoplanets. It is simply the measure of a star's decrease in brightness as the star passes through our line of sight. This once difficult measurement has now become commonplace and can even be done with advanced amateur astronomy equipment under a reasonably dark sky. From this measurement, we can infer a few things about the planets passing by: we c...
2025-09-0206 min
The 365 Days of AstronomyAstronomy Cast Ep. 126: From Skeptics Guide With Questionshttp://www.astronomycast.com/archive/ From February 9, 2009. This week Bob Novella of the Skeptics Guide to the Universe podcast is going to pepper Pamela with questions, testing her ability to leap from tides to gravitational waves to Higgs bosons. We'll see where this takes us on this skeptical journey through what is known and what we're trying to learn about this Universe. [Editor's note: A small bit of audio at the start of two of Bob's questions was lost due to a technical glitch. So I inserted a coo-coo clock sound effect. Things...
2025-09-0146 min
The 365 Days of AstronomyTravelers in the Night Eps. 327 & 328: Suddenly Bright & The Heat is OnDr. 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 From October & November 2024. Today's 2 topics: - An example that a relatively large space rock can approach the Earth suddenly started with what appeared as a bright star moving across the images that I had just obtained with the Catalina Sky Survey's 60 inch telescope on Mt. Lemmon, Arizona. It was about 100 times brighter than most of Earth approaching objects asteroid hunters discover. Over the next 64...
2025-08-3106 min
The 365 Days of AstronomyUNAWE Space Scoop - A Mysterious Notification From a Dying Massive StarIn January 2025, astronomers woke up to an alert of a mysterious event that occurred 2.8 billion light years away from Earth. As such things go, this was fairly close to Earth and was an opportunity for detailed observation of the event's evolution. It was a powerful burst of X-rays, known as a fast X-ray transient or FXT. This burst was named 'EP 250108a', after the Einstein Probe, that's the EP part, that detected the event. Let's call it 108a. Just between us… FXTs are generally hard to detect and occur far from the...
2025-08-3006 min
The 365 Days of AstronomyEVSN - Dual Quasars, Tidal Disruption Events & a Halo For AndromedaFrom August 31, 2020. Join us today as we examine observations for dual quasars in the process of merging and a star being torn apart by its supermassive black hole. Plus, Hubble data used to map a halo around the Andromeda galaxy. 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...
2025-08-2912 min
The 365 Days of AstronomySpace Stories - Galaxies Don't Crash, They RemixHosted by our Director, Avivah Yamani. Today's podcast guides you through the slow-motion meeting of the Milky Way and Andromeda. Learn why stars mostly miss each other, how gravity sculpts tidal tails, and how colliding gas and dust spark starbursts—turning two spirals into one remixed galaxy. Epic? Yes. Doomsday? Nope. 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...
2025-08-2808 min
The 365 Days of AstronomyGuide to Space - An Intermediate Mass Black Hole Found in the Milky Way. 100,000 Times the Mass of the Sunhttps://www.youtube.com/watch?v=5iOb8kC0OuM From Sep 8, 2017. Astronomers have been searching for mid-weight black holes, and now they've found one, right here in the Milky Way. 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...
2025-08-2709 min
The 365 Days of AstronomyDeep Astronomy - A Journey into a Black Hole Collisionhttps://www.youtube.com/watch?v=zIfHgFLe4_U Hosted by Tony Darnell. From Apr 26, 2016. Black holes have been largely theoretical until the LIGO observations announced earlier this year. Thanks to those observations, we now have another way to study and observe these amazing celestial objects. Original Music by Mark C. Petersen, Loch Ness Productions http://lochnessproductions.com 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/365DaysO...
2025-08-2609 min
The 365 Days of AstronomyAstronomy Cast Ep. 84: Getting Around the Solar SystemFrom April 14, 2008. Have you ever wondered what it takes to get a spacecraft off the Earth and into space. And how managers at NASA can actually navigate a spacecraft to another planet? And how does a gravity assist work? And how do they get things into orbit? And how do they land? So many questions… 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 podc...
2025-08-2535 min
The 365 Days of AstronomyTravelers in the Night Eps. 325 & 326: Marrakech & Asteroids 2016Dr. 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 From October 2024. Today's 2 topics: - A location 9,000 feet above sea level in the Atlas Mountains of Morocco is ideal for an asteroid hunter since the weather is often clear and the skies are dark. It was thus intriguing for me to see that a new asteroid discovery was posted from J43 which is the Morocco Oukaïmeden Sky Survey or (MOSS) located near Marrakech, a...
2025-08-2406 min
The 365 Days of AstronomyThe Cosmic Savannah - Ep. 73: Burping Black HolesHosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. In this episode of The Cosmic Savannah, our hosts speak with Dr. Eli Kasai from the University of Namibia. Dr. Kasai shares his inspiring journey of establishing the astronomy department at the University of Namibia, and his work on blazars using SALT and the Cherenkov Telescope Array. He also discusses the exciting African Millimetre Telescope project and Namibia's active role in the global astrophysics community, along with efforts to engage the public through the mobile planetarium. We've added a new way to d...
2025-08-2337 min
The 365 Days of AstronomyEVSN - Stars and Planets May Grow Up Together!From October 8, 2020. New images taken with the ALMA Observatory show a young proto-stellar disk with the rings and gaps of planetary formation growing together, once again challenging our preconceptions. And other research into stellar formation adds heavy metals to the mix to match models to observations. Plus, an old, metal-poor galaxy halo. 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 fr...
2025-08-2210 min
The 365 Days of AstronomyActual Astronomy - Listener EmailsHosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com The Actual Astronomy Podcast presents Listener Emails. In this episode we talk & read several listener emails including Observing Saturn, Equipment reports, telescope making, public outreach, a supernova photo and more! Our emailers: - Leonid - Frank Dempsy of Pickering, Ontario - Bill - Richard N. - Mike Peoples We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. ...
2025-08-2145 min
The 365 Days of AstronomyAwesome Astronomy - How Realistic is a Space Elevator?https://www.youtube.com/watch?v=Pu9-_p7m-4c Paul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. From Nov 18, 2022. An elevator into space - the science fiction future! No more explosive rockets - ride an elevator into orbit and open up the solar system for human exploration. But is that realistic or are there just as many risks with the space elevator? We've added a new way to dona...
2025-08-2012 min
The 365 Days of AstronomyAsk A Spaceman Ep. 254: How Do Variable Stars, You Know, Vary?What powers Cepheid variable stars? What about Mira variables and pulsating stars? And are there variable stars that don't actually vary at all? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!...
2025-08-1927 min
The 365 Days of AstronomyAstronomy Cast Ep. 221: Geomorphologyhttp://www.astronomycast.com/archive/ From February 21, 2011. When we look around our planet, we see a huge variety in landforms: mountains, valleys, plateaus, and more. Continents rise and fall over the eons, providing geologists with a history of the planet's evolution. The study of these changes is known as geomorphology, and the lessons we learn here on Earth apply to the other objects in the Solar System. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: https://www.pa...
2025-08-1830 min
The 365 Days of AstronomyTravelers in the Night Eps. 809 & 810: How Close Can An Asteroid Approach & Humans CanDr. 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 From August 2024. Today's 2 topics: - The Earth Minimum Orbit Intersection Distance or Earth MOID for short is the closest an asteroid can come to our home planet on it's current orbit. - The James Webb Space Telescope or JWST for short is a superb scientific instrument which is revolutionizing our understanding of the structure of the universe and is providing a tool...
2025-08-1706 min
The 365 Days of AstronomyASTROMAN - Dark Sky Initiative at HomeEpisode 8. "ASTROMAN: the Dark Sky Guardian" is a podcast channel that aims to explore popular science in multiple disciplines and research on interdisciplinary approaches, such as sustainability, dark-sky protection, astrophotography, space exploration, astronomy innovation, inclusive science communication, and STEAM Education by integrating science and arts. Exodus CL Sit, also known as the ASTROMAN, is a transmedia astronomy educator, popular science author, STEAM educator, and science communicator in Hong Kong. He is recently the National Astronomy Education Coordinator (Chair of Hong Kong, China) of the International Astronomical Union and President of Starrix. He was a...
2025-08-1607 min
The 365 Days of AstronomyEVSN - Cool Worlds, Exploding Stars, & an Asteroid That Missed EarthFrom August 20, 2020. Join us today as we look at how citizen science helped discover 100 cool worlds nearby. Then we examine evidence that exploding stars may have contributed to a mass extinction on Earth. Speaking of mass extinctions, an asteroid narrowly missed our planet last weekend. Because… 2020. 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 Patre...
2025-08-1512 min
The 365 Days of AstronomyGuide to Space - Chemicals for Life Found on Enceladushttps://www.youtube.com/watch?v=DgQexNb0_0s From Apr 15, 2017. Hosted by Fraser Cain. Did you hear that NASA just announced an important discovery in the quest to find life on other places in the Solar System? In this quick episode, Fraser details what NASA found on Saturn's Enceladus and Jupiter's Europa, and what it means for the search for life. 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 don...
2025-08-1408 min
The 365 Days of AstronomyCheap Astronomy - Dear CA #122: Other PlanetsStrange new worlds. Dear Cheap Astronomy – How big can rocky planets and how small can gas giants get? Well there is some data, so we don't have to talk in hypotheticals. There's a rocky planet with about 40 times Earth mass and about 3 and a half times Earth's diameter, which is about 85% of Neptune's diameter. So, it's a mighty big rocky planet that's approaching gas giant scale. Dear Cheap Astronomy – Will we grow crops in Martian regolith? So, firstly you can't really grow any plants from Earth...
2025-08-1314 min
The 365 Days of AstronomyExoplanet Radio Ep. 42: How Long Will Life on Earth Last?From October 9, 2013. Nothing lasts forever, stars live and die over the course of hundreds of millions to billions, and in the case of red dwarf stars, trillions of years. Planets are born from the remnants of their parent stars and die over a shorter timescale. Life on those planets, if it exists, is presumed to be shorter still, governed entirely by the environments provided by the combination of the star and planetary characteristics. How long life lasts there ultimately depends on how long the star lives and how it dies. Using our solar s...
2025-08-1206 min
The 365 Days of AstronomyAstronomy Cast Ep. 309: Creating a Scienc-y Societyhttp://www.astronomycast.com/archive/ From June 3, 2013. Hosted by Dr. Pamela Gay and Fraser Cain. Our modern society depends on science. It impacts the way we eat, work, communicate and play. And yet, most people take our amazing scientific advancement for granted, and some are even hostile to it. What can we do to spread the love of science through education, outreach and media? 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.co...
2025-08-1134 min
The 365 Days of AstronomyTravelers in the Night Eps. 807 & 808: Moon Orbit Crossers & Global Auroras on MarsDr. 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 From July & August 2024. Today's 2 topics: - During a recent 60 day period of time 23 space rocks came closer to Earth than our Moon. - When the Earth enters a stream of high speed protons and other charged particles in the solar wind or our home planet is impacted by a solar coronal mass ejection the Earth's strong magnetic field acts a a shield...
2025-08-1006 min
The 365 Days of AstronomyNOIR Lab - A Stellar Companion for BetelgeuseAstronomers have discovered a companion star in an incredibly tight orbit around Betelgeuse using the NASA and U.S. National Science Foundation-funded 'Alopeke instrument on Gemini North, one half of the International Gemini Observatory, partly funded by the NSF and operated by NSF NOIRLab. In this podcast, Dr. Steve Howell describes the possible discovery of this long sought after companion and future observations research into this type of star system. Bios: - Rob Sparks is in the Communications, Education and Engagement group at NSF's NOIRLab in Tucson, Arizona. - Dr. Howell has...
2025-08-0910 min
The 365 Days of AstronomyEVSN - It Came From the Outer Solar SystemFrom July 30, 2025. In this week's episode we take a look at all the news our outer solar system has to offer. From newly discovered outer solar system objects to interstellar comet 3I/Atlas to the Perseid Meteor shower, we have icy objects and absolutely no aliens (It's never aliens #IYKYK). 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 se...
2025-08-0831 min
The 365 Days of AstronomyCosmic Perspective - 50th Anniversary of the End of ApolloHosted by Andy Poniros. On the 50th anniversary of the final Apollo Mission, The Apollo-Soyuz Test Project, Apollo / Shuttle Astronaut Vance Brand discusses what is considered to be the beginning of detente between the US & the Soviet Union as well as other missions...Also, Apollo 11 Flight Controller Steve Bales & Apollo 16 Astronaut & Apollo 11 Lunar Landing Capcom, Charlie Duke discuss the challenges of landing the Neil Armstrong & Buzz Aldrin on the Moon. Intro Music: "A Moment in Space History", Andy Poniros Outro Music: Funk 2001, Larry Benigno We've added a ne...
2025-08-0757 min
The 365 Days of AstronomyAwesome Astronomy - AI, Hypersonics & Betelbuddy - August Part 1Paul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. This month we talk about Jen at the BBC, AI in science communication, a supernova in NGC7331, whether Betelgeuse has a companion, Exoplanet shenanigans, European hypersonic space planes, and of course our monthly sky guide and general chat. 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!...
2025-08-061h 28
The 365 Days of AstronomyAsk A Spaceman Ep. 253: What Does Outer Space Sound Like?What would the Sun sound like if we could hear it? Does any noise at all happen in the Universe? What's the biggest sound of all? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TI...
2025-08-0533 min
The 365 Days of AstronomyAstronomy Cast Ep. 235: Einsteinhttp://www.astronomycast.com/archive/ From October 17, 2011. What can we say about Einstein? Albert! Freaking! Einstein! Lots, actually. In this show we're going to talk about the most revolutionary physicist… ever. He completely changed our understanding of time, and space, and energy, and gravity. He made predictions about the nature of the Universe that we're still testing out. 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...
2025-08-0433 min
The 365 Days of AstronomyTravelers in the Night Eps. 805 & 806: Very Close Miss & Distant PHADr. 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 From July, 2024. Today's 2 topics: - During a recent 60 day period asteroid hunters observed 23 asteroids which came closer to us than our Moon. Six of them passed closer to the Earth's surface than 22,236 miles which is the distance to our communication satellites. - It is hard to obtain time on the 8m Gemini South Observatory telescope on Cerro Pachon in Chile a...
2025-08-0306 min
The 365 Days of AstronomyAstro Interviews - Fraser CainFrom August 19, 2017. Your audio editor, Richard Drumm, interviewed Astronomy Cast's co host Fraser Cain. The idea was to interview him before and after the total solar eclipse that was upcoming, and get his before and after impression of the event. Unfortunately the clouds at Carbondale, Illinois, had other plans. Fraser & Pamela were at SIUC's Stadium and Richard was 2 miles away at the SIUC School of Agricultural Sciences. Richard had a clear sky and Fraser & Pamela did not. This unfortunate turn of events blew the interview's main purpose to bits, so to speak. Even so, the interview is...
2025-08-0211 min
The 365 Days of AstronomyEVSN - Saturn's Rings Are Made of a Broken-up MoonFrom September 16, 2022. Using computer simulations, researchers have pieced together a possible scenario where Titan caused another of Saturn's moons to break up and become the beautiful ring system we see today. Plus, organic molecules on Mars, the death of the dinosaurs, and a review of Lightyear on Disney+. 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 Pa...
2025-08-0122 min
The 365 Days of AstronomyActual Astronomy - The Observer's Calendar for August 2025Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com The Actual Astronomy Podcast presents The Observer's Calendar for August 2025. In this episode we talk about the Moon pairing with Antares, Saturn, Mars then Antares again! We also talk about finding 4 asteroids at oppositions, Ausonia, Pallas, Julia and Hebe. There is also a great line in the sky formed when Jupiter, Venus and the Moon line up with Castor and Pollux after mid-month. Aug 1 - Carbon Star V Cyg at it's best Aug 2 - Lunar Straight Wall a...
2025-07-3121 min
The 365 Days of AstronomySpace Stories - When Stars Explode: From Nova to KilonovaHosted by Avivah Yamani, your Director. What happens when a star dies? Today we journey through the powerful stellar finales, from the gentle flare of a nova to the cataclysmic force of a kilonova. Join us as we unravel the stories behind novae, supernovae, hypernovae, kilonovae, and the recently discovered micronovae. Have a listen & find out what makes stars go out with a bang! 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...
2025-07-3010 min
The 365 Days of AstronomyDeep Astronomy - The Earth As An Exoplanethttps://www.youtube.com/watch?v=s8omjQrl2f4 Hosted by Tony Darnell. From August 22, 2018. Are we alone? How unique is our Earth? Should the hunt for life beyond Earth uncover a multitude of habitable worlds and few (if any) inhabited ones, humanity would begin to understand just how lonely and fragile our situation is. On the other hand, if our hunt yields a true diversity of inhabited worlds, then we would learn something fundamental about the commonality of life in the cosmos. Like this content? Please con...
2025-07-2909 min
The 365 Days of AstronomyAstronomy Cast Ep. 10: Measuring Distance in the Universehttp://www.astronomycast.com/archive/ From November 13, 2006. You hear distances all the time in astronomy. This star is 10 light-years away; that galaxy is 50 million light-years away; that Big Bang over there happened 13.7 billion years ago. But how did astronomers actually figure out how far away everything is? It's not a single measuring stick. Instead, astronomers have built up a series of overlapping measuring tools (yes, we're calling supernovae and variable stars "tools"), which take us from right around the corner to very ends of the Universe. Get out your ruler… no, the bigger one… never mind...
2025-07-2832 min
The 365 Days of AstronomyTravelers in the Night Eps. 803 & 804: Monster NEO & Tracie's SoloDr. 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 From June & July 2024. Today's 2 topics: - Since larger space rocks are rare, it was surprising when my Catalina Sky Survey teammate Hannes Groller found a half mile diameter asteroid traveling through the constellation of Auriga. Fortunately on it's current path 2024 JW1 can't come closer than 53 lunar distances from us. Asteroid hunters will continue to track 2024 JW1 to make sure that it does not become...
2025-07-2706 min
The 365 Days of AstronomyThe Cosmic Savannah Ep. 72: Exploring New Horizons in AstronomyHosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. From June 19, 2024. Season 6. In this episode of The Cosmic Savannah, our hosts chat with Dr. Rojovola Zara-Nomena Randriamanakoto from the South African Astronomical Observatory about her transformative journey from Madagascar to becoming an instrumental figure in astronomy, advocating for women in STEM, and her research on star clusters and colliding galaxies. Dr. Zara Randriamanakoto is an influential astronomer from Madagascar working at the South African Astronomical Observatory. She moved to South Africa in 2008, overcoming language barriers and limited i...
2025-07-2647 min
The 365 Days of AstronomyEVSN - Volunteer StargazerFrom July 16, 2025. In this special episode we look at how volunteers throughout history have aided in scientific explorations and tell you how you can get involved with our latest community science projects. - World Mappers (Mars Mosaics & Lunar Melt): https://mappers.psi.edu 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 th...
2025-07-2535 min
The 365 Days of AstronomyUNAWE Space Scoop - What Did Our Solar System Look Like as a Baby?Hosted by Richard Drumm, your editor! Planets don't just pop out of nowhere, fully formed and ready for astronomers to study. First, they begin as tiny little specks of dust, forming inside the clouds of gas around baby stars, which are known as protoplanetary discs. These dusty specks condense from the hottest parts of the cloud, kinda like the way raindrops form inside rainclouds. Over time, the specks of dust collide and stick together, forming rocky pebbles. When enough of these pebbles clump together, they can collapse under their own weight to form ast...
2025-07-2406 min
The 365 Days of AstronomyCheap Astronomy Ep. 121: Black Holes Yet Again!Very dense and podcastable. Cheap Astronomy finds there can never be too many podcasts about black holes. Dear Cheap Astronomy – What are squeezars? Squeezars are stars that orbit supermassive black holes. Essentially they are stars on a slow death spiral into the black hole and the squeezing referred to is the tidal stretch being exerted upon them as the orbit closer and closer to the black hole's event horizon. That tidal stretching heats them up, a bit like how the moon of Io, orbiting close to...
2025-07-2314 min
The 365 Days of AstronomyAsk A Spaceman Ep. 252: Why Can't We Get Free Energy from the Vacuum?Hosted by Dr. Paul M. Sutter. Why does the vacuum of spacetime have energy? How much energy does it have? What prevents us from using it to do anything useful? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: http://www.pmsutter/book Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #As...
2025-07-2236 min
The 365 Days of AstronomyAstronomy Cast Ep. 277: OrbitFrom October 22, 2012. When an object is orbiting the Earth, it's really falling. The trick, described in the Hitchhiker's Guide to the Galaxy, is how to throw yourself at the ground and miss. There are several different kinds of orbits, and they are good for different reasons. From suborbital jumps to geostationary orbit, time to learn everything there is to know about going around and around and around. 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/365Da...
2025-07-2133 min
The 365 Days of AstronomyTravelers in the Night Eps. 801 & 802: Jacqui's PHA & Bok CometDr. 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 From June 2024. Today's 2 topics: - My Catalina Sky Survey teammate Jacqueline Fazekas was asteroid hunting with our small but mighty Schmidt telescope on Mt. Bigelow, Arizona when she spotted and then reported a bright moving point of light in the night sky to the Minor Planet Center. Given the rate of human caused climate change one has to wonder about the state of our...
2025-07-2006 min
The 365 Days of AstronomyASTROMAN - Capturing the Milky Way - A Starter's Guide to Capturing the Milky WayEpisode 7. "ASTROMAN: the Dark Sky Guardian" is a podcast channel that aims to explore popular science in multiple disciplines and research on interdisciplinary approaches, such as sustainability, dark-sky protection, astrophotography, space exploration, astronomy innovation, inclusive science communication, and STEAM Education by integrating science and arts. Exodus CL Sit, also known as the ASTROMAN, is a transmedia astronomy educator, popular science author, STEAM educator, and science communicator in Hong Kong. He is recently the National Astronomy Education Coordinator (Chair of Hong Kong, China) of the International Astronomical Union and President of Starrix. He was a...
2025-07-1907 min
The 365 Days of AstronomyEVSN - Magnetic Fields Help Find Ocean WorldsResearchers have determined how to effectively measure the magnetic fields at Neptune to determine if any of the moons are ocean worlds… in just twelve minutes. Plus, lasers recreate galaxy cluster conditions, some mind-bending new math, how the Earth's crust developed, and a look at the long history of Daylight Saving Time. 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...
2025-07-1826 min
The 365 Days of AstronomyGuide to Space - What Comes After James Webb & Nancy Grace Roman?https://www.youtube.com/watch?v=7x0RpGa_IXA From Jun 12, 2018. The Hubble Space Telescope has been in space for 28 years, producing some of the most beautiful and scientifically important images of the cosmos that humanity has ever taken. But let's face it, Hubble is getting old, and it probably won't be with us for too much longer. NASA's James Webb Space Telescope is in the final stages of testing, and WFIRST (Nancy Grace Roman) is waiting in the wings. You'll be glad to know there are even more space telescopes i...
2025-07-1616 min
The 365 Days of AstronomyExoplanet Radio Ep. 39 - Biosignatures: The Search for Life Beyond Earthhttps://www.youtube.com/watch?v=kaauzzrH4N8 From Oct 4, 2023. Hosted by Tony Darnell. In recent years, scientists have made great strides in the search for extraterrestrial life. They have discovered thousands of exoplanets. And some of them are located in the habitable zone of their star, which means that liquid water could exist on their surface and is essential for life as we know it. The search for life however, is a little more involved than finding planets, measuring their location and distance around the star and figuring out their location within a...
2025-07-1506 min
The 365 Days of AstronomyAstronomy Cast Ep. 112: Death From the Skies, With Phil Plaithttp://www.astronomycast.com/archive/ From October 27, 2008. We say it all the time here on Astronomy Cast: the Universe is trying to kill us. This week, Pamela is joined by Dr. Phil Plait to discuss his new book, Death from the Skies. Phil and Pamela talk about asteroid strikes, solar flares and gamma ray bursts. 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! Sh...
2025-07-1435 min
The 365 Days of AstronomyTravelers in the Night Eps. 799 & 800: Nature's Gateways & Telescope RebornDr. 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 From May & June 2024. Today's 2 topics: - The Cosmic Campground International Dark Sky Sanctuary and the Aldo Leopold Gila Wilderness in New Mexico are gateways to nature where man is only a visitor.These New Mexico neighbors give us a sense of wonder, glimpses of history, new knowledge to mitigate the effects of man's excesses, and many other opportunities we are yet to fully appreciate.
2025-07-1306 min
The 365 Days of AstronomyNOIR Lab - The Rubin Observatory First LookMessengers Of Time And Space with Dr. Alan Strauss! The NSF–DOE Vera C. Rubin Observatory, released its first imagery at an event in Washington, D.C. The imagery shows cosmic phenomena captured at an unprecedented scale. In just over 10 hours of test observations, NSF–DOE Rubin Observatory has already captured millions of galaxies and Milky Way stars and thousands of asteroids. The imagery is a small preview of Rubin Observatory's upcoming 10-year scientific mission to explore and understand some of the Universe's biggest mysteries. In this podcast, Rubin Observatory's Dr. Alan Strauss discus...
2025-07-1219 min
The 365 Days of AstronomyEVSN - Lightweight Mars-sized Planet Found in TESS DataFrom December 3, 2021. A Mars-sized planet was found just 31 light-years away, orbiting its star every eight hours and having 55 percent the mass of the Earth, leading scientists to conclude it's mostly made of an iron-nickel core. Plus, water on Earth, a huge comet, and a review of a Canon lens. 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 th...
2025-07-1122 min
The 365 Days of AstronomySpace Stories - Chasing Cosmic Fireflies: A Guide to Transient ObjectsHosted by Avivah Yamani. The night sky isn't still. It's full of brief, brilliant flashes called transient objects. In this episode we explain what they are, why they matter, and how you can help chase them! 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!...
2025-07-1006 min
The 365 Days of AstronomyGuide to Space - It Came From Deep Space!https://www.youtube.com/watch?v=IQtdQ94jy8I From Oct 17, 2017. Some comets orbit the Sun on a regular basis, but others come in from deep space, a region known as the Oort Cloud. What causes them to make this journey, and will we ever be able to explore the Oort Cloud? Team: Fraser Cain - @fcain / frasercain@gmail.com Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEIt... Chad Weber - weber.chad@gmail.com Chloe Cain - Instagram: @chloegwen2001 W...
2025-07-0911 min
The 365 Days of AstronomyAsk A Spaceman Ep. 251: Are the Cosmic Voids Really Empty?The Total Emptiness of Cosmic Voids. How do we actually define voids? Are there regions within them that are truly empty? What would it be like to be inside one? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: http://www.pmsutter/book Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #As...
2025-07-0832 min
The 365 Days of AstronomyAstronomy Cast Ep. 762: Science in Crisis - NASA's New Budgethttps://www.youtube.com/watch?v=wCPh_qSiV6E Streamed live on Jun 30, 2025. Hosted by: Fraser Cain and Dr. Pamela L. Gay Normally we try to end the season on a high note. But there's unfolding news that we just HAVE to cover before we leave you for the summer. NASA's new budget is here, and it's 25% smaller. We'll cover what the changes are and try to understand the implications. It's a bad decade to be a researcher. We're going to look at why, and what US cuts will mean for the world.
2025-07-0748 min
The 365 Days of AstronomyTravelers in the Night Eps. 797 & 798: Recoveries & Destination EnceladusDr. 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 From May 2024. Today's 2 topics: - It is essential that asteroid hunters keep track of potentially dangerous asteroids to make sure that their orbits haven't changed as they encounter other objects in space to make them a threat to our home planet. - Life on Earth appears to have formed in our oceans. Scientists are thus on the hunt for other worlds which...
2025-07-0606 min
The 365 Days of AstronomyGuide to Space - First Ever Picture of a Baby Planet!https://www.youtube.com/watch?v=Xryd9cC8ZWU From Jul 4, 2018. For the first time ever, astronomers have captured a direct image of a newly forming planet orbiting around a newly forming star. It's a stunning photograph, not only for the science and what was observed, but what it means the future of exoplanetary 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! Sh...
2025-07-0507 min
The 365 Days of AstronomyEVSN - 2 Tales of 2 decades: Rubin Observatory & SpaceX StarshipFrom July 2, 2025. Join us as we look at two parallel stories - the development of the Vera Rubin Observatory and the SpaceX Starship rocket. Both projects are 20 years in the making, and both were supposed to start work in 2019. Both hit new milestones in June, and it's time to review their very different progress. Also included in this episode: 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: https://www.patreon.com/365DaysOfAstronomy and donate as...
2025-07-0437 min
The 365 Days of AstronomyActual Astronomy - July Observer's GuideHosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com The Actual Astronomy Podcast presents The Observer's Calendar for July 2025. In this episode we talk about how to see Mercury, the Moon as it pairs with Spica, Antares, Saturn, Jupiter, several carbon stars and some deep sky objects like M6 & M7. 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 po...
2025-07-0344 min
The 365 Days of AstronomyAwesome Astronomy - Vera Rubin, Welsh Satellites and LIGO Disaster - July Part 1Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Brace yourselves! This is the longest podcast that 365 Days has ever had! 1 hour 34 minutes! A bumper episode or is that a Jumper episode if Jeni has her way. Paul has new scope and Jeni has been seeing the Sun. We have terrible news from LIGO, the end of Milkomeda, Light pollution paradox, Vera Rubin first light, a new satellite from Wales, spaceX kablooie, leaks on the ISS and of course the usual skyguide and emails! Phew!
2025-07-021h 34
The 365 Days of AstronomyUNAWE Space Scoop - Tiny Black Holes Have Big SuperpowersBlack holes come in many sizes. Small, medium, large & extra large. The size of a black hole mostly depends on how massive the star was before it ran out of fuel, exploded as a supernova and collapsed under its own extreme gravity. The more massive the black hole, the stronger and larger its effect on the fabric of space and time. Here's the new bit! In a recent study, astronomers found that even tiny black holes have immense power to shape their part of the galaxy. Far more than previously thought. Black holes can rip ap...
2025-07-0106 min
The 365 Days of AstronomyAstronomy Cast Ep. 761: It's Here! The Vera Rubin Observatoryhttps://www.youtube.com/watch?v=LVlbMsEpr8Y Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live June 25, 2025. The time has come. The mighty Vera Rubin Observatory has finally come on line and delivered its "first light" images. And by Pamela's rules that means we get to talk about it! So let's do that! After decades of waiting, we have images from Vera Rubin Observatory! SUPPORTED BY YOU This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level o...
2025-06-3031 min
The 365 Days of AstronomyTravelers in the Night Eps. 323 & 324: Big Splash & Newborn PlanetsDr. 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 From October 2024. Today's 2 topics: - To discover what would happen if an asteroid were to strike a large body of water, Dr. Galen Gisler led a team of scientists who used high performance computing facilities at Los Alamos National Laboratory to calculate and visualize a 3-D model of an asteroid entering the Earth's atmosphere over one of the world's oceans. These efforts won them...
2025-06-2906 min
The 365 Days of AstronomyCosmic Savannah Ep. 71: The Dark Side of the UniverseHosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela & Dr. Daniel Cunnama. In this milestone episode of The Cosmic Savannah, hosts Tshiamiso, Jacinta and Dan celebrate the start of Season Six and the podcast's fifth anniversary. They engage in an enlightening discussion with Associate Professor Renée Hložek from the Dunlap Institute, focusing on her research in dark matter, dark energy, and the cosmic microwave background. Highlights include the significance of science communication, diversity in STEM, and Dr. Hložek's involvement with the Vera C. Rubin Observatory. Join us once...
2025-06-281h 11
The 365 Days of AstronomyEVSN - When the Universe AttacksFrom June 18, 2025. In this episode we celebrate the 75th anniversary of the Fermi Paradox by looking at a bunch of science capable of preventing and destroying civilizations. We also review our latest not-so-great attempts to land on the moon and launch a rocket that (if it worked) could carry us to Mars. 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 fr...
2025-06-2738 min
The 365 Days of AstronomyH'ad Astra Historia - Ep. 205 – Memories of EdToday Historical Astronomy Division, https://had.aas.org/, honors the late Dr. Edward C Stone with an episode of remembrances by his colleagues, friends, & family. Among his career achievements, he led NASA's Voyager planetary-to-interstellar mission for 50 years as Project Scientist, from concept in 1972 through his retirement in 2022. Dr. Edward C Stone who passed away one year ago this month on June 9, 2024. During his 60-year career with JPL-Caltech (that included 10 years as JPL Director) Dr. Stone steered NASA's Voyager planetary-to-interstellar mission for 50 years as Project Scientist, from concept in 1972 through his retirement in 2022. He "was known for his steady leadership, c...
2025-06-2650 min
The 365 Days of AstronomyCheap Astronomy - Dear CA #120: Different PerspectivesHosted by Steve Nerlich. Looking askance… Dear Cheap Astronomy – have we got any spacecraft on the other side of the Sun? Well, yes and no. Nearly all our spacecraft orbit the Sun – since they are either orbiting Earth or another planet or are touring the asteroid belt – and hence they've all been around the back of the Sun at one time another. The only spacecraft we don't have orbiting the Sun are the ones on their way out of the Solar System – the Pioneers, the Voyagers and New Horizons, which have sufficient escape velocities...
2025-06-2515 min
The 365 Days of AstronomyExoplanet Radio Ep. 37: Osiris: The Exoplanet That Changed Everythinghttps://www.youtube.com/watch?v=Spo0dppFX9w Hosted by Tony Darnell. From Oct 2, 2023. The planet is HD 209458 b, and nicknamed "Osiris" after the Egyptian god of the underworld. Osiris is a fitting nickname for this planet, as it is a very hot and hostile world. HD 209458 b orbits its star very closely, and its surface temperature is estimated to be around 1,000 degrees Celsius. This makes it too hot for liquid water to exist on its surface, and it is unlikely to be habitable. Even so, this planet is remarkable in many w...
2025-06-2406 min
The 365 Days of AstronomyAstronomy Cast Ep. 760: What to Look For This Summerhttps://www.youtube.com/watch?v=9hG8Q3ZSX50 Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live on Jun 16, 2025. It's almost time for our annual summer hiatus, but before we go, we wanted to direct you towards all the fun and space stuff we'll be enjoying this summer. We've got meteor showers, planets, rocket launches, TV shows, movies! Here's what's good. In a couple of weeks, we'll go on hiatus, but we want to make sure you are ready for stuff we can anticipate happening. ...
2025-06-2329 min
The 365 Days of AstronomyTravelers in the Night Eps. 321 & 322: Dangerous Comet & Dust StoriesDr. 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 From September 2024. Today's 2 topics: - Protection against a comet strike is worth considering. Every year, if we are lucky, several comets can come close enough for the Sun to warm and us to see the beautiful changing dust and gas clouds around them with binoculars or our unaided eyes. So far asteroids have gotten most of the attention as dangerous celestial neighbors, however, Dr...
2025-06-2206 min
The 365 Days of AstronomyASTROMAN - The Dark Sky Messenger: A Beginner's Guide to Night Sky PhotographyEpisode 6. "ASTROMAN: the Dark Sky Guardian" is a podcast channel that aims to explore popular science in multiple disciplines and research on interdisciplinary approaches, such as sustainability, dark-sky protection, astrophotography, space exploration, astronomy innovation, inclusive science communication, and STEAM Education by integrating science and arts. Exodus CL Sit, also known as the ASTROMAN, is a transmedia astronomy educator, popular science author, STEAM educator, and science communicator in Hong Kong. He is recently the National Astronomy Education Coordinator (Chair of Hong Kong, China) of the International Astronomical Union and President of Starrix. He was a...
2025-06-2106 min
The 365 Days of AstronomyEVSN - Black Hole Caught Eating Faster Than NormalFrom June 28, 2022. With a little bit of luck and a lot of time on different telescopes, researchers managed to capture the black hole in the center of the Milky Way, SgrA*, consuming matter at a faster rate than usual. Plus, Australia launches a rocket, a couple of Mars stories, and strange glaciers on Earth. 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 wi...
2025-06-2023 min
The 365 Days of AstronomyActual Astronomy - The Chiricahua Sky VillageHosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com The Actual Astronomy Podcast presents The Chiricahua Sky Village. In this episode we talk with Peter Monson who has a well established observing site at the Sky Village in Arizona. We discuss the dark skies, weather conditions, facilities and how people set up their lots as well as how folks interested in getting a site of their own can become involved. Concluding Message: Please subscribe and share the show with other stargazers you know and send us show ideas, o...
2025-06-191h 11
The 365 Days of AstronomyCheap Astronomy - Dear CA #119: Out There!Space travel or the lack thereof. Hosted by Steve Nerlich. Dear Cheap Astronomy – Interstellar trade As regular listeners are aware, here at Cheap Astronomy, we think faster than light travel just ain't going to happen. That limits your trade options a good deal if our potential alien trading partners are anywhere up to a hundred light years or more away. Dear Cheap Astronomy – Why aren't we doing more with artificial gravity Good question. As we've discussed on this podcast and as others have discussed on pretty much every...
2025-06-1814 min
The 365 Days of AstronomyAsk A Spaceman - Constants of Nature Part 2Episode 250. Part 2 of 2! What are the modern constants of nature? Is the Universe fine-tuned for life? Does the multiverse or string theory explain the origins of the constants? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: http://www.pmsutter/book Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COM...
2025-06-1735 min
The 365 Days of AstronomyAstronomy Cast Ep. 759: The Commercial Space Programhttps://www.youtube.com/watch?v=clLLqzWyT-Q Hosted by: Fraser Cain and Dr. Pamela L. Gay Streamed live on Jun 9, 2025. Humanity has turned its focus back to the Moon, sending a fleet of spacecraft to the lunar surface. Some are run by the government, but there's a whole new group of commercial landers bearing instruments to the lunar surface. Is this the future of lunar exploration? Space used to be a place occupied by government-funded and military missions, but today, we're seeing the rise... and fall (somersault, crash, and explosion) of missions with...
2025-06-1635 min
The 365 Days of AstronomyTravelers in the Night Eps. 319 & 320: Lost and Found & WOW! What a Ride!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 From September 2024. Today's 2 topics: - When asteroid hunters follow an object in the night sky for a few hours or a couple of days they are only able to observe a snippet or tracklet of the object's hundreds to thousands of days long path around the Sun. If we only have a short sample of an orbit we loose precision to locate the object...
2025-06-1506 min
The 365 Days of AstronomyNOIRLab - Messengers of Time and SpaceNSF NOIRLab, funded by the U.S. National Science Foundation (NSF), has released the fulldome planetarium show, Messengers of Time and Space. This free-to-download production brings the combination of the International Gemini Observatory, funded in part by NSF and operated by NSF NOIRLab, and NSF–DOE Vera C. Rubin Observatory, funded by NSF and the U.S. Department of Energy's (DOE) Office of Science and jointly operated by NOIRLab and DOE's SLAC, to the forefront of humanity's quest to understand our ever-changing cosmos. This podcast discusses the production process of this planetarium show and tells listeners where how they ca...
2025-06-1411 min
The 365 Days of AstronomyEVSN - Moon Rock Samples Show Signs of Late VolcanismFrom October 7, 2021. An analysis of the most recent sample taken from the Moon and returned by the Chang'e-5 mission shows that the basaltic rock is about two billions years old. This age implies a previously unknown heat source in the region. Plus, how plants and animals record climate change, and this week's What's Up. 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...
2025-06-1322 min
The 365 Days of AstronomyAwesome Astronomy - June Part 1: Lancing Galaxies and Angry EmailsPaul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. This month we have Galactic sized lancing battles, Jupiter twice its size, Wales entering the space race and we have emails! Oh we have emails! 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...
2025-06-121h 13
The 365 Days of AstronomyBig Impact Astronomy - TRIBU GuadalajaraTRIBU Cultura Astronómica is an organization dedicated to the dissemination of astronomy and scientific culture. It is an organization dedicated to boosting awareness of the Universe through astronomical experiences. - We facilitate astronomical observation experiences with telescopes and specialized guides that take you on an adventure through the cosmos. - Learning spaces directed to all public audiences to learn about the Universe. In addition we facilitate content, activities and strategies for teaching astronomy. - We provide downloadable audiovisual content of scientific disclosure centered on the learning of astronomy to pique yo...
2025-06-1151 min
The 365 Days of AstronomyExoplanet Radio - The Importance Of Gliese 581ghttps://www.youtube.com/watch?v=M6_HooIJLNc From Oct 12, 2010. The fact that we've found a habitable planet candidate so soon after starting our search has important implications for the number of habitable planets that may exist in our galaxy - which was estimated to be around 10 billion. Having found Gliese 581g so soon though, may mean one of two things. Either we were very lucky, or there are more planets out there than we thought. Based on this discovery, it's possible that we may have many more habitable planets than orig...
2025-06-1007 min
The 365 Days of AstronomyAstronomy Cast Ep. 107: Nucleosynthesis - Elements from StarsFrom September 22, 2008. Look around you. Breathe in some air. Everything you can see and feel was formed in a star. Today we'll examine that long journey that matter has gone through, forged and re-forged in the hearts of stars. In fact, the device you're using to listen to this podcast has some elements formed in a supernova explosion. 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! ...
2025-06-0928 min
The 365 Days of AstronomyTravelers in the Night Eps. 317E & 318E: Psyche Water & Caves of MarsDr. 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 From August 2024. Today's 2 topics: - The asteroid Psyche may be one of the most expensive pieces of real estate in the solar system. It is a small world about 116 miles in diameter and is composed of almost pure nickel-iron metal. It is located in the asteroid belt between Mars and Jupiter. Scientists find evidence that Psyche may be the exposed core of a planet...
2025-06-0806 min
The 365 Days of AstronomyDeep Astronomy - Planetary Environments & Health Riskshttps://www.youtube.com/watch?v=Cil0v7dIkgc Hosted by Tony Darnell. From July 6, 2017. If we send humans to Mars, will they be able to survive? How hostile is the solar system for human exploration? The Mars environment presents many challenges to human survival and long-term residence. In addition to radiation, unbreathable atmosphere, and dust storms, surviving alien microorganisms can present a health risk. The US Congress has directed NASA to plan for a human mission to Mars. A critical element of the planning is to ensure the h...
2025-06-071h 04
The 365 Days of AstronomyEVSN - Happy Space News!From May 21, 2025. This week, we take a closer look at the weirdly twisty search for a possible planet in our outer solar system. We'll also take in the happy science of aurorae here, at Jupiter, and over Neptune, as well as a bunch of weird discoveries that has some people screaming "It's Aliens!" (it's not aliens). 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...
2025-06-0631 min
The 365 Days of AstronomyActual Astronomy - June Observer's CalendarHosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com The Observer's Calendar for June 2025 on Episode 485 of the Actual Astronomy podcast. I'm Chris and joining me is Shane. We are amateur astronomers who love looking up at the night sky and this podcast is for everyone who enjoys going out under the stars. June 1 - Venus at greatest elongation in morning sky 46-degrees from Sun. Mars is still 30-degrees up but just over 5 arc seconds when the month begins. June 3 - first quarter Moon
2025-06-0534 min
The 365 Days of AstronomyAwesome Astronomy - We've Discovered At Least 5,000 Planets!https://www.youtube.com/watch?v=ByfigQW-6Mk Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. From Jan 28, 2022. Taking a look at how over the last 40 years we went from only knowing of the handful of planets in our solar system to knowing of around 5,000 planets littering the galaxy. How have we discovered new planets? How many are there? How many stars have planets around them? Are there star systems with multiple plan...
2025-06-0416 min
The 365 Days of AstronomyAsk A Spaceman Ep. 249: Where Do the Constants of Nature Come From? Part 1Part 1 of 2! How do fundamental constants appear in physics? Why are they so important? Why do we care where they come from? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter 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!
2025-06-0335 min
The 365 Days of AstronomyAstronomy Cast Ep. 758: Non-Roving Rovershttps://www.youtube.com/watch?v=k6p03D1iaMw Streamed live on May 26, 2025. Hosted by: Fraser Cain and Dr. Pamela L. Gay Some of our favorite robots are rovers currently roving around the surface of the Moon & Mars. But there's some pretty tricky terrain out there and engineers are scheming up clever ways to explore other worlds inspired by life that crawls, slithers, hops and flies. As we explore more surfaces and more complex surfaces throughout the solar system, mission teams are designing robot explorers that don't sit still and also don't...
2025-06-0231 min
The 365 Days of AstronomyTravelers in the Night Eps. 315 & 316: See Comets & Weird CentaurDr. 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 From January 2017 & August 2024. Today's 2 topics: - 2017 will be (was) a good year to view comets with your unaided eye or a pair of binoculars. - My Catalina Sky Survey teammate Richard Kowalski was surprised to find a moving point of light on some his images which was more than 50 times brighter than a typical Earth approaching object he observes. He was even...
2025-06-0106 min
The 365 Days of AstronomyUNAWE Space Scoop - Could This Be One of the Strangest Planets Ever Found? https://spacescoop.org/en/scoops/2507/could-this-be-one-of-the-strangest-planets-ever-found/ Recently, a team of astronomers found a new exoplanet, called 2M1510 (AB) b, that really surprised them. This new exoplanet is special — its orbit looks more like a Ferris wheel! It goes up and over the top rather than around the side, traveling at a right angle to the carousel-like path we normally find. But having an unusual orbit is only part of the puzzle, and to see just how odd our new exoplanet is we also need to look at its stars. We've...
2025-05-3105 min
The 365 Days of AstronomyEVSN - A Failing Look at Earth, a First Look at Other Worlds, & MoreFrom May 19, 2025. In this week's closer look we are going to look at the earth-facing missions that are getting dragged down by our atmosphere and will be forcibly retired by physics in the next few years, again with no replacements in the works. These missions allow us to do long term monitoring of our planet, its atmosphere, and the variables that help us understand everything from weather to climate change. We also look at cool new exoplanet discoveries, the beautiful death of a star, and tales from the launch pad. We've added a n...
2025-05-3035 min