The 365 Days of Astronomy
The 365 Days of Astronomy podcast, launched in 2009 for the International Year of Astronomy, offers daily episodes featuring a new voice each day to explore the universe. Managed by Avivah Yamani and edited by Richard Drumm, the show is funded through Patreon and produced by the Planetary Science Institute. It provides accessible astronomy content for a broad audience.
Episodes
Travelers in the Night Eps. 377 & 378: Fission Rocket & Enormous Visitor
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 February 2026. Today's 2 topics: - To get an idea of the energy involved in a rocket launch, the NASA Saturn V, moon rocket, fully fueled on the launch pad contained the chemical energy of 2
Astroman - F Is For Full Moon
Exodus talks about Moon phases. "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 Chun-Lo
EVSN - Betelgeuse: Smaller & Closer Than Previously Thought… What?
From October 19, 2020. Hosted by: Dr. Pamela L. Gay (@CosmoQuest) Today's top story brings back our favorite red giant star, Betelgeuse. A new paper published in The Astrophysical Journal (ApJ) with lead author Dr. Meridith Joyce looks at Betelgeuse as a pulsating variable star and uses atmospheric physics to bring us new insights on what the red giant is up to. This paper combines new observati
Actual Astronomy - Top Ten Techniques for Buying Used Telescope Gear
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. actualastronomy@gmail.com Top ten techniques for buying used telescope gear on Episode 552 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
Deep Astronomy - The Triangulum Galaxy: The Most Distant Naked Eye Object
https://www.youtube.com/watch?v=VmzJj2i81H0 Hosted by Tony Darnell. From Nov 7, 2017. Have you ever wondered what the most distant object we can see with our naked eyes is? The answer is The Triangulum Galaxy some three million light years from Earth. This galaxy, along with the Great Andromeda Galaxy will collide with our Milky Way in about four billion years. This galaxy collision will herald
Cheap Astronomy - Dear CA # 139: Clearing the Neighborhood
Saving the world on a tight budget. Hosted by Steve Nerlich. Dear Cheap Astronomy – Can we clear all the PHOs from around Earth? A key feature of Cheap Astronomy's CSOTM (Crash Shirt On The Moon) proposal is that the most readily available source of shirt to crash are near Earth asteroids and a small number of comets. This has the double benefit of putting all the raw materials in one place, plus
Astronomy Cast Ep. 800: The Beginning & End of Everything - Part 1
https://www.youtube.com/watch?v=CDFCqCj0ofk Streamed live on Sep 7, 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) This show is supported through people like you on Patreon.com/AstronomyCast To celebrate our 20th season, we thought we'd go back right to the beginning… of everything. Let's wind the clock back to the earliest moments of the Universe, where we'll measu
Travelers in the Night Eps. 375 & 376: Extraterrestrial Whales & Tiny Space Rock
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 February 2026. Today's 2 topics: - In an area which is about 1/400th of the entire sky, the NASA Kepler spacecraft has discovered 30 Earth like planets which are likely to have liquid water
NOIRLab - The DESI Legacy Imaging Surveys
Hosted by Rob Starks. The newest DESI Legacy Imaging Surveys map, 13 years in the making, covers three-quarters of the sky and catalogs nearly four billion objects. This treasure trove is available to all and contains stars, galaxies, supernovae, gravitational lenses, and much more. Two NSF NOIRLab facilities contributed data to the map: the U.S. National Science Foundation (NSF) Mayall telescope
EVSN - Newly Discovered Solar System Object is 'Farfarout'
From February 15, 2021. A newly found object nearly four times farther out from the Sun than Pluto now holds the record for the farthest observed in our solar system. Plus, forming Super Earths, finding potentially habitable planets, jellyfish galaxies, the Crab Nebula, and this week's What's Up. D100 in the Coma Cluster: https://science.nasa.gov/asset/hubble/h-alpha-tail-of-d100/ We've added
Guide To Space - Universe Today News: 7 Stage Journey Reveals How Falling Space Rocks Survive Air
https://www.universetoday.com/articles/7-stage-journey-reveals-how-falling-space-rocks-survive-air By Laurence Tognetti, MSc - August 31, 2026. Recorded by our Editor, Richard Drumm. At least once in our lives, we've all seen a bright streak of light briefly blaze across the sky and have quickly referred to it as an asteroid, meteor, shooting star, comet, or some other whimsical name we've heard
Big Impact Astronomy - Inspiring the World Through Astronomy With Dr. Kelly Blumenthal
https://www.youtube.com/watch?v=R6lOpIWbly4 From July 23, 2026. Hosted by Mike Simmons. Episode 19. https://astro4equity.org - Visit our website! Dr. Kelly Blumenthal is an astrophysicist and science communicator who has lived in and worked with many communities across the United States and worldwide. These experiences have shaped Kelly's perspectives on the importance of astronomy communication
Ask A Spaceman Ep. 279: What Can We Actually Find on an Exoplanet?
Mapping Alien Worlds! Hosted by Dr. Paul M. Sutter. Just how hard are exoplanets observations? What kind of telescope will it take to find life? And how much information can we get out of a single pixel of light? 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.yo
Astronomy Cast Ep. 53: Astronomy in Science Fiction
From September 10, 2007. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) This is a very different episode of Astronomy Cast. As we mentioned last week, Pamela recently attended the Dragon*Con science fiction convention in Atlanta, Georgia. While she was there, she participated in a special live edition of Astronomy Cast with special guest Dr. Kevin Frazier. Kevin is a NASA
Travelers in the Night Eps. 373 & 374: Plant Companionship & Earth's Pet Rock
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 January & February 2026. Today's 2 topics: - On Earth, human life is enabled by plants which provide us with calories, vitamins, fuel, medicines, and oxygen to breathe. In addition, recent s
Equatorial Sky Guide - September
Hosted by our Director, Avivah Yamani. September's equatorial sky features Venus, Saturn, Mars, Jupiter, dark Milky Way nights, the September equinox, and a lunar occultation of Venus. 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
EVSN - On Background: The Anatomy of a Comet
Hosted by: Dr. Pamela L. Gay (@CosmoQuest) From September 1, 2026. In this special episode, funded by the National Science Foundation, we're taking a break from the headlines to study the changing anatomy of a comet. 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 muc
Actual Astronomy - The Observer's Calendar for September
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. actualastronomy@gmail.com In Episode 549 of Actual Astronomy, hosts Chris and Shane present the Observer's Calendar for September 2026, highlighting key celestial events for amateur astronomers throughout the month. Highlights
Awesome Astronomy - Holy Flipping Galaxies Batman!
September Part 1! Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. So it turns out… -The Milky Way may have done a back flip… -News about the Swift telescope, -NASA raiding its bare cupboards, and -A super fast star. -A nova in Sagitta! Also… -Our usual skyguide and wittering. -Oh, and a song. You will be full of antici……….pation!
Deep Astronomy - The Most Distant Galaxy Ever Measured
https://www.youtube.com/watch?v=frcLSXuzzyY Hosted by Tony Darnell. From October 24, 2010. On Oct 19, 2010, astronomers announced the measurement of a redshift of 8.6 for one of the galaxies in the Ultra Deep Field. That corresponds to a galaxy seen just 600 million years after the Big Bang! Here's the news release from ESO's website: http://www.eso.org/public/news/eso1041/ The Nature paper: htt
Astronomy Cast Ep. 8: Meteor Showers. Yes, the Sky is Falling!
http://www.astronomycast.com/archive/ Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) From October 30, 2006. Dress warmly, gather some friends and family, and head outside to watch sand burn in the upper atmosphere. There's nothing like a good meteor shower. Fraser and Pamela explain this beautiful phenomenon: what causes them, the best storms and showers to watch for, and
Travelers in the Night Eps. 371 & 372: Kiwi Nights & Close Ones
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 January, 2026. Today's 2 topics: - New Zealand's 4.5 million people are concentrated in three major population centers which to various degrees suffer from the modern plague of light polluti
Space Stories - Syzygy, When Worlds Line Up
Hosted by our Director, Avivah Yamani. What is a syzygy? Explore one of astronomy's strangest words and discover how the Sun, Earth, Moon, eclipses, transits, and tides are all connected by cosmic alignment. 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
EVSN - After Hours #8: Making Moons & Getting Cratered With William K Hartmann
Hosted by: Dr. Pamela L. Gay (@CosmoQuest) From August 13, 2026. Across a long career, Dr. William Hartmann has done everything from innovating how the Moon was formed to founding the Planetary Science Institute to defining space art for a new generation; a generation that included host Pamela Gay. Tune in to hear about science, art, and how they can mix as individuals both make new discoveries, a
Guide To Space - Are Aliens Watching Us & How Could We Hide? With Dr. David Kipping
https://www.youtube.com/watch?v=Rx1276dpHe4 From Jan 14, 2020. Hosted by: Fraser Cain (@frasercain) Once again, at the AAS Meeting in Hawaii, I got a chance to sit down with another astronomer to talk about their research. This time it was Dr. David Kipping from Columbia University's Cool World's Lab. We talked about how easy it'll be for aliens to know our planet is inhabited, and some ways we mi
Deep Astronomy - NASA's TESS Finishes First Year of Exoplanet Science Operations
https://www.youtube.com/watch?v=ivzbZRWkMUg Hosted by Tony Darnell. From Nov 12, 2019. NASA's Transiting Exoplanet Survey Satellite has completed its first year of science operations and to show for it, NASA has released this amazing mosaic of the entire southern celestial hemisphere. This video was written by NASA Goddard folks, you can watch the original here: https://svs.gsfc.nasa.gov/13285
Cheap Astronomy - Dear CA #138: In Space!
Some place in space. Hosted by Steve Nerlich. Dear Cheap Astronomy – What is the role of AI in space? AI simulates human decision-making and finds most practical usage in the sorting and analysing of various kinds of data. So. you can feed an AI program pictures of galaxies and the classifications they fit into and then the AI can then identify and classify new ones that you feed it. It's kind of
Astronomy Cast Ep. 101: Advanced Propulsion Systems
From August 11, 2008. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Last week we talked about rockets. How they work, how they go BOOM!, their limitations. And this week we're going to look at the future of propulsion systems. From the ion engines that are already working to explore the Solar System to the prototype solar sails to futuristic technologies like magnetic sa
Travelers in the Night Eps. 369E & 370E: Night Vision & Double Comet
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 December 2025 & January 2026. Today's 2 topics: - Many people in our modern world rarely if ever experience night vision. To achieve this interesting state of sensory awareness you cannot lo
Actual Astronomy - Messier Objects for August
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. actualastronomy@gmail.com On Episode 547 of Actual Astronomy, hosts Chris and Shane guide listeners through observing an array of August Messier objects across the constellations Ophiuchus, Scorpius, and Sagittarius. The show
Space Stories - The Fastest Star in the Milky Way
Hosted by our Director, Avivah Yamani. Meet S301, the fastest known star in the Milky Way, racing around Sagittarius A* and offering astronomers a new way to measure the spin of our galaxy's supermassive black hole. 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
EVSN - After Hours: Doing Big Science With Light Tools & Guest Dr. Danny Jacobs
From July 30, 2026. Hosted by: Dr. Pamela L. Gay (@CosmoQuest) Science comes from many corners, and there is a need for both 600-m radio telescopes made on a great plain (Like the RATAN-600) and 60cm radio dishes built in a living room. In this After Hours, we talk with ASU professor Dr. Danny Jacobs (https://danielcjacobs.com)about how he engages students of all kinds in space sciences through ed
Awesome Astronomy - The Eclipse & the Perseids
August Part 2. Paul Hill hosts solo! Damien Phillips, John Wildridge and Dustin Ruoff produce. Join Paul in his Astronomy lair as he live sketches the Eclipse, chats to neighbours and talks Astronomy news while spotting Perseid meteors. 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/365DaysOfAstrono
Ask A Spaceman Ep. 278: What's A Good Story About Chandrasekhar?
Physics under pressure! Hosted by Dr. Paul M. Sutter. What was the big deal about Chandrasekhar's discovery? Why did he meet so much resistance? How is his work tied to everything from supernovae to black holes? 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.you
Astronomy Cast Ep. 118: Sky Surveys
http://www.astronomycast.com/archive/ From December 12, 2008. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) In the old days, astronomers had to beg for telescope time. They'd put together a proposal, convince observatories to gather data for them, crunch that data and release the results. No telescope, no results. But everything's different now. Fleets of robotic telesco
Travelers in the Night Eps. 367 & 368: Moons of Florence & Roving Venus
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 December 2025. Today's 2 topics: - Dr. Lance Benner of NASA's Jet Propulsion Laboratory headed up a team of scientists who used the 70 meter antenna at NASA's Goldstone Deep Space Communicat
Astroman - E is for Eclipse
Today's episode is all about last Wednesday's total solar eclipse. But you have a partial lunar eclipse that's coming up that you can look forward to on August 27-28! "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
EVSN - After Hours: International Moon Day 2026 With guest Jekan Thanga
Hosted by: Dr. Pamela L. Gay (@CosmoQuest) From July 22, 2026. On July 20, the world celebrates International Moon Day. This UN designated holiday marks the anniversary of humanity's first landing on the Moon. The Apollo 11 landing in 1969 is now only a distant memory or a date from history for most people, but it is worth thinking about as the world prepares to return humans to the Moon in the co
Guide To Space - Where Do Comets Come From? Exploring the Oort Cloud
https://www.youtube.com/watch?v=IQtdQ94jy8I From Oct 17, 2017. Hosted by: Fraser Cain (@frasercain) 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? Before I get into this episode, I want to remind everyone that it's been several decades si
Equatorial Sky Guide - August 2026
Hosted by our Director, Avivah Yamani. Explore the August 2026 equatorial sky, from the Perseids and Milky Way to bright planets and the August 12 total solar eclipse. 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
Cheap Astronomy - Dear CA Ep. 137: Space Missions
Hosted by Steve Nerlich. We are still out there. Dear Cheap Astronomy – Why do some space missions last so long? So, we're all familiar with the stories of the Mars rovers, Spirit and Opportunity, landing with mission lifespans of 90 days, that then went on to rove the surface of Mars for 15 years. And the Voyager probes, launched in 1977, were supposed to have five-year missions, which are now go
Astronomy Cast Ep. 160: Eclipses
http://www.astronomycast.com/archive/ From October 19, 2009. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Every now and then, the Moon destroys the Sun. Okay, not destroys, covers. Well, not really covers, but from here on Earth, sitting inside the shadow of the Moon, that's what it sure looks like. These events are called eclipses, or more precisely, transits and occul
Travelers in the Night Eps. 365E & 366E: Spotting Meteors & Mars Rocks
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 December 2025. Today's 2 topics: - Meteors, shooting stars, or falling stars are different names for the streaks of light in the night sky which are in reality the dying embers of tiny aster
NOIRLab - The Start of the LSST
Hosted by Rob Sparks. The 10-year Legacy Survey of Space and Time has officially started, marking the beginning of a new era in astronomy and astrophysics. Over the next ten years, Rubin will relentlessly observe the entire southern sky every few nights to create an ultra-wide, ultra-high-definition time-lapse record of our Universe. This long-awaited milestone is the culmination of years of effor
EVSN - After Hours: Space Rocks Collected for Science With Guest Dr. Rhonda Stroud
From July 15, 2026. Hosted by: Dr. Pamela L. Gay (@CosmoQuest) Our solar system readily provides us with free samples of other worlds in the form of meteorites. The trick comes in first recognizing them, and then in understanding what science is locked in their minerals. One major center for collecting and studying these space rocks is Arizona State University's Buseck Center for Meteorite Studies
Actual Astronomy - The Observer's Calendar for August 2026
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. actualastronomy@gmail.com Episode 545 of the Actual Astronomy podcast features hosts Chris and Shane discussing the observer's calendar and planetary visibility for August 2026. Throughout the month, skywatchers can track key
Ask A Spaceman Ep. 277: What's It Like to Travel Near the Speed of Light?
Life at lightspeed! Hosted by Dr. Paul M. Sutter. What does high-speed motion through the Universe do to your perspective? What is the Rindler horizon, and how does it appear? Would you get vaporized by a high-energy bath of radiation? 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
Awesome Astronomy - August Part 2: Jodrell Bank Murder Club
Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Angry episode where Paul and Jeni have their blood boiled by the decision to defund Jodrell Bank Observatory and the plans to launch over a million satellites, thousands of which will be brighter then the full moon! We've added a new way to donate to 365 Days of Astronomy to support edit
Astronomy Cast Ep. 85: Detectors
http://www.astronomycast.com/archive/ Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) From April 21, 2008. Our senses can only detect a fraction of the phenomena happening in the Universe. That's why scientists and engineers develop detectors, to let us see radiation and particles that we could never detect with our eyes and ears. This week we'll go through them all, so yo
Travelers in the Night Eps. 363E & 364E: House Sized Space Rocks & Jupiter
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 November 2025. Today's 2 topics: - Throughout history small close approaching space rocks have been a part of our environment. Now, thanks to improved telescopes and cameras, asteroid hunter
Space Stories - Betelgeuse Was Never Alone
Hosted by Avivah Yamani, our Director! Was Betelgeuse ever truly alone? For over 100 years, astronomers searched for a hidden companion to Orion's famous red supergiant. Now, new observations from ESO's Very Large Telescope have revealed the clearest evidence yet that Betelgeuse has a stellar companion. Discover the science, the mystery, and why this finding is changing our understanding of one of
EVSN - Betelgeuse Smaller Than Previously Calculated, Still A Mystery
From February 10, 2021. Hosted by Dr. Pamela L. Gay. Scientists collected fresh data on Orion's bright star Betelgeuse to try and understand this star that caused so much controversy. They found it's smaller than previously calculated, and last year's dimming was likely caused by dust, but it's also more complex than thought. Plus, galaxies, Earth's forests, ice on Mars, and Saturn's moon Rhea.
UNAWE Space Scoop - A Blazing Hot World With A Buzzing Secret
https://spacescoop.org/en/scoops/2608/a-blazing-hot-world-with-a-buzzing-secret/ Hosted by our editor, Richard Drumm. Far, far away from Earth, over 300 light-years away, is an incredible exoplanet called WASP-189b, in the constellation Libra, the scales. It lies a bit to the NW of Beta Librae, or Zubeneschamali, and almost exactly due north of the Libra star with my favorite star name: Zubenelge
Guide To Space - Betelgeuse Is Still Dimming! And We Have the Pictures to Prove It
https://www.youtube.com/watch?v=gC4LEozmqXE From Feb 16, 2020. Hosted by Fraser Cain. Near the end of 2019, astronomers watching the red giant Betelgeuse noted how much the star had dimmed, continuing to steadily fade for months. It's a variable star, and it's known to get dimmer and brighter, but the big surprise is that it's still continuing to dim, recently passing magnitude 1.56 and still gett
Awesome Astronomy - Eclipse Girl Summer!
July Part 2! Paul Hill & Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Summer is here, so is the heat and so is the Eclipse! Chat, tips and hints about August's Eclipse and the Perseid meteor shower, as well as summer vibes, emails and Jeni dressing up as Max Wall. Link: https://github.com/marcel-jan/inkystarmap We've added a new way to donate to
Astronomy Cast Ep. 89: Adaptive Optics
http://www.astronomycast.com/archive/ Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) From May 19, 2008. Since the dawn of humanity, astronomers have wished to destroy the atmosphere. Oh sure, it's what we breathe and all, but that stupid atmosphere is always getting in the way. Since destroying the atmosphere is out of the question, astronomers have figured out how to wor
Travelers in the Night Eps. 361E & 362E: Newest Moon & Tiny Beasts
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 November 2025. Today's 2 topics: - The moon cycle from new moon through full moon and back to new moon again was used by many nations to regulate their activities and forms the basis of the
The Cosmic Savannah Ep. 84: Celebrating 10 Years of IDIA
Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela, Dr. Daniel Cunnama & François Campher. In this special episode of The Cosmic Savannah, we celebrate the 10th anniversary of IDIA(Inter-University Institute for Data Intensive Astronomy) with three very special guests: the new director Professor Roger Deane, astronomy support specialist Walter Silima, and head of outreach and development Associ
EVSN - Black Holes, Giant Galaxies & A Baby Planet
From May 21, 2020. Hosted by Dr. Pamela L. Gay. Join us today as we discuss the impressive work by an undergraduate student who figured out how galaxy mergers influence the growth of supermassive black holes. We talk about a gigantic galaxy found in the early Universe. And finally, we look at amazing images of a planet being formed around a distant star. We've added a new way to donate to 365 Da
Actual Astronomy - Messier Objects For July 2026
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. actualastronomy@gmail.com Description: This month we talk about some of the globular clusters from the Messier catalogue you can easily see on summer nights. From big and bright M5 and M4 to small and mighty M80 we talk about vi
Guide To Space - Where Are All The Alien Robots? The Chilling Idea Of Von Neumann Probes
https://www.youtube.com/watch?v=vHMIv_zAbrM From Oct 6, 2016. Hosted by Fraser Cain. As you know, I'm obsessed about the Fermi Paradox. Where are all the aliens? But an even stranger question is: where are all the robot aliens? If you've seen at least one other episode of the Guide to Space, you know I'm obsessed about the Fermi Paradox. This idea that the Universe is big and old, and should be te
Ask A Spaceman Ep. 276: What Would Happen if the Sun…Stopped?
Solar Apocalypse! Hosted by Dr. Paul M. Sutter. What really keeps the Sun shining? How long would it stay warm if fusion stopped? How long would it take before we noticed? 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:
Astronomy Cast Ep. 58: Inflation
http://www.astronomycast.com/archive/ From October 15, 2007. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) We interrupt this tour through the solar system to bring you a special show to deal with one of our most complicated subjects: the big bang. Specifically, how it's possible that the universe could have expanded faster than the speed of light. The theory is called th
Travelers in the Night Eps. 899 & 900: Hitch Hiking an Asteroid to Mars & Earth Life From Mars
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 May 2026. Today's 2 topics: - Asteroids could provide a solution for the serious problem of how to protect astronauts from harmful solar and cosmic radiation during long duration space fligh
AstroMan - D for Dark Sky Protection
When was the last time you saw the Milky Way? In this episode of Astroman, Exodus Chun-Long Sit explores how light pollution is changing our night skies, affecting wildlife, wasting energy, and limiting our view of the universe. Learn why protecting dark skies matters—and how simple actions can help bring the stars back. "ASTROMAN: the Dark Sky Guardian" is a podcast channel that aims to explore
EVSN - Astronomy Asks: How Did You Get There?
From July 1, 2026. How is this the last episode of the season? July snuck up on us. We'll be back Sept 2 with Season 5! For now, we've got astronomers asking questions; questions like "Did you eat a planet?" and "How did you get there?" Expect the unexpected with a side of rockets. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just v
Space Stories - Starburst Galaxy: The Universe's Stellar Baby Boom
Hosted by Avivah Yamani, our Director! Some galaxies don't just make stars. They go on a star-making frenzy! Discover what turns an ordinary galaxy into a starburst galaxy, and why these spectacular events help astronomers understand how galaxies evolved over billions of years. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit
Guide To Space - What Are Fast Radio Bursts? A Big Mystery in Astronomy
https://www.youtube.com/watch?v=ikdOTj6g_Zw Hosted by Fraser Cain. From Apr 26, 2017. Here's a big mystery in astronomy: fast radio bursts. Brief shrieks of radio waves coming from space. What are they? Where do they come from? Astronomers have no idea. Team: Fraser Cain - @fcain / frasercain@gmail.com Karla Thompson - @karlaii Chad Weber - weber.chad@gmail.com You might think you're watching
Deep Astronomy - Exolife Hangout: Happy Pi Day!
https://www.youtube.com/watch?v=zXW7uXo04aE Hosted by Tony Darnell. Streamed live on Mar 14, 2018. Join Tony Darnell, Dr. Jeff Kuhn, Dr. Svetlana Berdugina and Kevin Lewis as they discuss the latest development in the field of astrobiology. Want to learn the latest in Exoplanet research? The cutting edge of finding related to our search for life elsewhere? Then this is the hangout for you! Thi
Astronomy Cast Ep. 41: The Rise of The Supertelescopes
Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) From June 18, 2007. The last decade has been the golden age of astronomy, with new observatories and space telescopes pushing out our understanding of the Universe. We see billions of light years away, watch dynamic events unfold in almost real-time, and see into every corner of the electromagnetic spectrum. But just you wait
Travelers in the Night Eps. 897 & 898: Kacper's Comet & Pandora
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 May 2026. Today's 2 topics: - In 2007 a small icy object moving in the constellation of Ursa Minor crossed the orbit of Pluto at a speed of approximately 4.2 mi/s starting its journey toward
NOIRLab - The First Magnetar Progenitor
Neutron stars, the compact remains of a massive star following a supernova explosion, are the densest matter in the Universe. Some neutron stars, known as magnetars, also claim the record for the strongest magnetic fields of any object. How magnetars, which are a mere 15 kilometers across, form and produce such colossal magnetic fields remains a mystery. New observations by a team of astronomer
EVSN - After Hours: Exploring Physics Through Spaceflight Missions with author Trisha Muro
Hosted by Dr. Pamela L. Gay. From July 8, 2026. The physics behind modern spaceflight explores everything from aerodynamics to thermodynamics with a lot of kinematics playing a role along the way. We welcome on guest Trisha Muro to discuss her new book, "It's (Just) Rocket Science", which explores how we can learn physics through spaceflight missions. We've added a new way to donate to 365 Days
UNAWE Space Scoop - Why Does Jupiter Have Bigger Moons Than Saturn
https://spacescoop.org/en/scoops/2609/why-does-jupiter-have-bigger-moons-than-saturn/ Hosted by our editor, Richard Drumm. Jupiter and Saturn are the gas giants in our Solar System. Ummm… Uranus & Neptune are now called ice giants. But back to Jupiter & Saturn. They are the largest planets, have the most moons compared to the other planets, and if that isn't cool enough, they're home to some of t
Awesome Astronomy - When Cosmologists Get Spicey
Paul Hill & Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. This month it appears cosmology is saved, Swift maybe saved and exoplanets have their magnetosphere measured. Jeni has been in the States where she may have been turned into an android visiting Silicon Valley. We've added a new way to donate to 365 Days of Astronomy to support editing, hos
Ask A Spaceman Ep. 275: Why Can't the Universe Be Cyclic?
Hosted by Dr. Paul M. Sutter. What are the weaknesses of inflation theory? How did the ekpyrotic theory attempt to improve it? How did it open up its own can of worms? 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://ww
Astronomy Cast Ep. 6: Ep. 6: More Evidence For the Big Bang
Mon 06: Astronomy Cast Ep. 6: Ep. 6: More Evidence For the Big Bang http://www.astronomycast.com/archive/ From October 16, 2006. Last week's episode started out with a bang… a Big Bang. This week we continue our discussion into the beginning of everything. We present three additional lines of evidence that have led astronomers to the conclusion that our Universe started out as a singularity 13.7 b
Travelers in the Night Eps. 895 & 896: Tracking Space Junk & Sneaky But Potentially Dangerous
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 April 2026. Today's 2 topics: - According to NASA an average of one catalogued piece of space junk per day has come down to Earth over the past 50 years. Research is described which can trac
Equatorial Sky Guide For July
Hosted by our Director, Avivah Yamani. Discover the highlights of the July 2026 equatorial night sky, including Venus meeting Regulus, Mars and Uranus' closest conjunction until 2053, the Buck Moon, meteor showers, and the best nights to observe 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.patr
EVSN - Tracing the Hidden & Revealing the Past
From June 24, 2026. In this episode we look at the hidden and unexpected geology that may lurk beneath East Antarctica's ice sheet, evidence of past worlds and lost moons that may once have populated our solar system, and evidence of a past Supernova that today may be showering the Earth with material. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and prod
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