The 365 Days of Astronomy
- Folgen
- 250
- Erscheint
- täglich
- Letzte Folge
- 14. Nov. 2026
Über den Podcast
The 365 Days of Astronomy podcast launched in 2009 as part of the International Year of Astronomy. This community podcast continues to bring you day after day of content across the years. Everyday, a new voice, helping you see the universe we share in a new way. This show is managed by Avivah Yamani, edited by Richard Drumm. This podcast is funded through Patreon.com/CosmoQuestX and produced out of the Planetary Science Institute.
Folgen 250
NOIR Lab - Rubin's First Dwarf Planet Candidate
In the outer reaches of our Solar System, beyond the orbit of Pluto, NSF–DOE Vera C. Rubin Observatory has spotted 2026 ED138 — a large, bright trans-Neptunian object that scientists have identified as a dwarf …
Shownotes
In the outer reaches of our Solar System, beyond the orbit of Pluto, NSF–DOE Vera C. Rubin Observatory has spotted 2026 ED138 — a large, bright trans-Neptunian object that scientists have identified as a dwarf planet candidate. If confirmed, ED138 would be among the largest dwarf planets ever discovered in this region of the Solar System.
In this podcast, Dr. Matt Holman discusses the discovery of this interesting object, what we currently know about it and the future of dwarf planet science with the Rubin Observatorty.
Bios:
Dr. Matthew Holman studies the dynamics of the solar system and of planetary systems, and he build the methods that find and track small bodies in large surveys. He is a Senior Astrophysicist at the Smithsonian Astrophysical Observatory and a Lecturer on Astronomy at Harvard. From 2015 to 2021 he was Director of the Minor Planet Center.
Rob Sparks is in the Communications, Education and Engagement group at NSF's NOIRLab in Tucson, Arizona.
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
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Every bit helps! Thank you!
------------------------------------
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
EVSN - More Critiques of the Wrongness of Disney's Science
From December 13, 2019. We've had an amazing trip, even if we didn't get to see rocket launches. But we can't help but to comment on science when we see it mishandled, and this time it was a ride at Disney's …
Shownotes
From December 13, 2019.
We've had an amazing trip, even if we didn't get to see rocket launches. But we can't help but to comment on science when we see it mishandled, and this time it was a ride at Disney's Animal Kingdom. There was a ride that took us on a "time machine" to catch a dinosaur, right before the meteor impact that we believe caused the major extinction event. Let's just say "That's not how it works - that's not how any of this works," once again.
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
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Every bit helps! Thank you!
------------------------------------
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http://cosmoquest.org/Donate This show is made possible through your donations.
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
UNAWE Space Scoop - A Mysterious Shock Wave
https://spacescoop.org/en/scoops/2607/a-mysterious-shock-wave/ From April 29, 2026. Hosted by Dr. Pamela L. Gay (@CosmoQuest) A white dwarf's colorful bow shock has astronomers puzzled. Explore the mystery of …
Shownotes
https://spacescoop.org/en/scoops/2607/a-mysterious-shock-wave/
From April 29, 2026.
Hosted by Dr. Pamela L. Gay (@CosmoQuest)
A white dwarf's colorful bow shock has astronomers puzzled. Explore the mystery of 730 light year distant RXJ0528+2838 on the Auriga/Taurus border and its hidden power source on 365 Days of Astronomy!
Press Release: "Astronomers surprised by mysterious shock wave around dead star":
https://www.eso.org/public/news/eso2601/
"A persistent bow shock in a diskless magnetised accreting
white dwarf":
https://www.eso.org/public/archives/releases/sciencepapers/eso2601/eso2601a.pdf
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
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Every bit helps! Thank you!
------------------------------------
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Guide To Space - What Was The Carrington Event?
https://www.youtube.com/watch?v=uAuyv9TCThI Hosted by: Fraser Cain (@frasercain) From Jan 17, 2017. In 1859, the Sun gave off the most powerful solar flare on record. A blast of radiation and particles so …
Shownotes
https://www.youtube.com/watch?v=uAuyv9TCThI
Hosted by: Fraser Cain (@frasercain)
From Jan 17, 2017.
In 1859, the Sun gave off the most powerful solar flare on record. A blast of radiation and particles so strong it fried electrical wires and set telegraph towers on fire. What would happen if a solar storm of this magnitude happened today? It would be a very bad day indeed!
https://en.wikipedia.org/wiki/Carrington_Event
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
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Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Awesome Astronomy - Libby Jackson Interview: A Galaxy of Her Own
Paul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Recorded in 2018. Paul, Ralph & Jeni interview Libby Jackson OBE FRAeS, former manager …
Shownotes
Paul Hill, Ralph Wilkins and Dr. Jenifer "Dr. Dust" Millard host.
Damien Phillips, John Wildridge and Dustin Ruoff produce.
Recorded in 2018.
Paul, Ralph & Jeni interview Libby Jackson OBE FRAeS, former manager of human exploration program and microgravity of the UK Space Agency. She's currently Head of Space for the London Science Museum. We talk to Libby about being weightless, the value of space research and the most inspiring tales of following your dreams as we chat about her first book "A Galaxy of Her Own: Amazing Stories of Women in Space"!
From small steps to giant leaps, A Galaxy of Her Own tells fifty stories of inspirational women who have been fundamental to the story of humans in space, from scientists to astronauts to some surprising roles in between. From Ada Lovelace in the nineteenth century, to the women behind the Apollo missions, from the astronauts breaking records on the International Space Station to those blazing the way in the race to get to Mars, A Galaxy of Her Own reveals extraordinary stories, champions, unsung heroes and celebrates remarkable achievements from around the world.
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Astronomy Cast Ep. 808: Mission Tech Series: Nuclear Rockets
https://www.youtube.com/watch?v=J0DTzACDj7Y Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed live on Oct 27, 2026. Once again, chemical rockets are ubiquitous but not as …
Shownotes
https://www.youtube.com/watch?v=J0DTzACDj7Y
Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)
Streamed live on Oct 27, 2026.
Once again, chemical rockets are ubiquitous but not as powerful as other propulsion ideas. And one big idea that's been around for decades is using the power of nuclear fission to generate much more thrust for a rocket. Today let's talk about nuclear rockets!
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
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Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Travelers in the Night Eps. 901 & 902: Rubin And Incoming Asteroids & Lighting Up The Night
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 …
Shownotes
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 & June 2026.
Today's 2 topics:
- However, according to a recent research project, the Rubin Observatory will discover but not give an adequate warning time for objects destined to hit the Earth. To provide time to take action to deflect an incoming object we will need to rely on ground based telescopes used by my Catalina Sky Survey teammates and other asteroid hunting groups as well as NASA's NEO Surveyor satellite when it is launched.
- A start up company Reflect Orbital is proposing to launch 50,000 satellite mirrors by 2035 to illuminate solar panels on Earth all night long. This would be devastating for human sleep cycles, birds, insects, plants and many of the biological systems of organisms on which we all depend.
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Equatorial Sky Guide - November
Hosted by our Director, Avivah Yamani. Explore November's equatorial night skies with Avivah! We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just …
Shownotes
Hosted by our Director, Avivah Yamani.
Explore November's equatorial night skies with Avivah!
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
EVSN - A Cat's Head & Tail (Light Years Apart) With A White Dwarf
From October 31, 2026. Hosted by: Dr. Pamela L. Gay (@CosmoQuest) This episode has everything! Creepy hands, cats, white dwarfs, and a whole lot of Pluto-sized worlds (from the past). We've added a new way to …
Shownotes
From October 31, 2026.
Hosted by: Dr. Pamela L. Gay (@CosmoQuest)
This episode has everything! Creepy hands, cats, white dwarfs, and a whole lot of Pluto-sized worlds (from the past).
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Actual Astronomy - Observer's Calendar For November
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. [email protected] In this …
Shownotes
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. [email protected]
In this episode we cover the very active Leonid Meteor Shower peaking on the night of November 17–18, 2026, produced by dust from comet 55P/Tempel-Tuttle with fast meteors. Explore expert guidance on tracking celestial events alike Venus pairing with Spica, lots of deep sky clusters plus the latest astronomical highlights and observational tips for stargazers of all levels.
In this episode, we are looking ahead to the night skies for the month of November. We break down the key celestial highlights—from planetary conjunctions and meteor showers to prime targets for deep-sky observers and double star enthusiasts.
The Planets This Month
- Mercury: Extremely low in the east-northeast (ENE), best viewed after mid-month.
- Venus: Extremely low in the east-southeast (ESE) morning twilight all month.
- Mars: Looks good already.
- Jupiter: Rises after 9:00 PM in the ENE and transits before 5:00 AM. Look out for multiple shadow transit events throughout the month.
- Saturn: High in the south-southeast (SSE) at dusk, setting in the west around 2:00 AM.
Weekly Highlight Guide & Notable Events:
Week 1 (November 1 – November 7)
- November 1: Daylight Saving Time ends at 2:00 AM (remember to set your clocks back!). Gegenschein is high in the south at midnight and well-positioned for the next two weeks in dark skies.
- November 2: Mars passes north of the Moon; Jupiter passes north of the Moon.
- November 3: Lunar Curtis X visible; M74 well-placed this evening.
- November 4: Mercury at inferior conjunction. Look for two shadows on Jupiter around 11:12 PM. NGC 253 and NGC 288 are well-placed this evening.
- November 6: M31 (Andromeda Galaxy) and NGC 7662 are well-placed this evening.
- November 7: Venus north of the Moon. Zodiacal Light easily visible in dark skies in the east before morning twilight for the next two weeks. NGC 891 (The Silver Sliver Galaxy) is well-placed this evening. Long period variable star T Cep reaches maximum (8:00 PM).
Week 2 (November 8 – November 14)
- November 8: New Moon at 2:02 AM. Callisto and Io shadow events visible on Jupiter starting at 2:24 AM. M52 and NGC 7635 (Bubble Nebula) well-placed this evening.
- November 9: M103 and NGC 457 well-placed this evening. Comet 252P/LINEAR active.
- November 10: NGC 7789 well-placed this evening.
- November 11: Remembrance Day (Canada) / Veterans Day (USA). Venus is stationary.
- November 12: NGC 7793 well-placed this evening.
- November 13: Taurid meteor shower peaks (ZHR ~ 5), best seen in predawn hours. Carbon star TU Gem best in evening. Mercury stationary; Mercury at apogee.
Week 3 (November 15 – November 21)
- November 15: Mars north of Jupiter. M48, M47, and M46 well-placed this morning.
- November 16: Lunar X near crater Werner visible this evening. Carbon star UV Aql best in early evening.
- November 17: First Quarter Moon (6:48 AM). Leonid meteor shower peak (ZHR ~ 20), best seen in predawn hours today. Lunar Straight Wall, Eyes of Clavius, and Plato sunrise rays visible ().
- November 18: 55 Psc colorful double star. Carbon star TX Psc best in evening.
- November 19: Jewelled Handle (). Andromedae and colorful double star; WZ Cas best in evening.
- November 20: Venus north of Spica. Mercury greatest western elongation ( from Sun) in morning sky. Two shadows on Jupiter visible at 7:33 PM. 59 Andromedae and colorful double star; VX And best in evening.
- November 21: Carbon star TX Psc best in evening.
Week 4 & Beyond (November 22 – November 30)
- November 22: Crater Bailly (). Long period variable star W And ().
- November 24: Full Moon at 9:54 AM. Mars north of Regulus. Large tides expected over the following three days. Note for northern observers: "Today's Full Moon is the Rivers Freezing Over Moon."
- November 25: Moon at perigean (). Uranus at opposition (). Europa and Io shadow transit on Jupiter at 12:57 AM.
- November 26: Thanksgiving Day (USA).
- November 28: Uranus opposition window highlights.
- November 29: Venus at greatest illuminated extent. Try to spot Uranus () unaided this weekend.
- November 30: Jupiter, Moon, Regulus, and Mars within this morning.
Deep-Sky & Binocular Target Highlights
- The Silver Sliver Galaxy (NGC 891): An absolute standout edge-on spiral galaxy in Andromeda, matching the Milky Way in size and structure (~30 million light-years away).
- Star Clusters & Nebulae: Beautiful sweeps through M52, the Bubble Nebula (NGC 7635), NGC 7789, and open clusters M46, M47, and M48.
- Carbon Stars & Double Stars: Keep an eye out for colorful double star systems like Andromedae and 59 Andromedae, alongside rich carbon stars such as TU Gem, UV Aql, WZ Cas, and TX Psc for deep red hues.
The visual comets expected in the Northern Hemisphere for November 2026 are 161P/Hartley-IRAS (magnitude ~10) and 10P/Tempel 2 (magnitude ~11), both observable through binoculars or small telescopes.
Visual Comets in November 2026
- 161P/Hartley-IRAS: Reaches an estimated visual magnitude of about 10, making it a dim target best spotted with binoculars or a small telescope in dark evening skies.
- 10P/Tempel 2: Reaches an estimated visual magnitude of about 11, continuing to fade slightly after its August 2026 perihelion, visible via telescope.
Notable November 2026 Meteor Showers (Comet-Related)
November features active meteor showers linked to comet debris:
- Southern Taurids: Peak on the night of November 4–5, 2026, originating from comet 2P/Encke and known for slow, bright fireballs.
- Northern Taurids: Peak on November 12, 2026, also connected to comet 2P/Encke.
- Leonid Meteor Shower: Peaks on the night of November 17–18, 2026, produced by dust from comet 55P/Tempel-Tuttle with fast 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/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Awesome Astronomy - Phoenix Planets & Zombie Stars
Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. This month there is news of a zombie star racing through stellar evolution, a Phoenix planet rising …
Shownotes
Paul Hill and Dr. Jenifer "Dr. Dust" Millard host.
Damien Phillips, John Wildridge and Dustin Ruoff produce.
This month there is news of a zombie star racing through stellar evolution, a Phoenix planet rising from the ashes of stellar death, and danger to the UKs power infrastructure from space. Bumper skyguide for November and the usual witterings of Dr. Jeni and Paul.
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Ask A Spaceman Ep. 283: What's Really Going on with UAPs?
Strange Skies! Hosted by Dr. Paul M. Sutter. What are UFOs? What are the chances that aliens have visited the Earth? Why should we bother talking about it? I discuss these questions and more in today's Ask a …
Shownotes
Strange Skies!
Hosted by Dr. Paul M. Sutter.
What are UFOs? What are the chances that aliens have visited the Earth? Why should we bother talking about it? 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!
Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Corey D, Michael P, Naila, Sam R, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, Lisa R, Kevin B, Aileen G, Michael J, Phillip L, Steven B, Mark R, Alan B, Craig B, Richard K, Joe R, David P, Justin, Tracy F, Thomas K, James C, Syamkumar M, Mark D, Bruce A, Tim Z, Linda C, The Tired Jedi, Bob C, Stephen A, James R, Allen E, Michael S, Sheryl, David W, Chris, Michael S, Erlend A, James D, Karl W, Edward K, Scott K, Vivek D, M0PPET, Brad, Azra K, Steve R, M D Malahy, Brian O, Alonna M, Joseph B, Anders J, Blaine, Ry Guy, and Phil!
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Astronomy Cast Ep. 807: Mission Tech Series: Ion Drives
https://www.youtube.com/watch?v=NUAmf_p-FKU Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed live on Oct 27, 2026. The majority of rockets use a chemical propulsion system, but …
Shownotes
https://www.youtube.com/watch?v=NUAmf_p-FKU
Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)
Streamed live on Oct 27, 2026.
The majority of rockets use a chemical propulsion system, but there are other ideas, fancy ideas that sound like they came from science fiction. But they're real and they work! Today we'll talk about ion engines, used by tie fighters everywhere!
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
Thank you! (Haven't donated? It's not too late! Just click!)
------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Travelers in the Night Eps. 389 & 390 Rose Rules Again & Meteor Whispers
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 …
Shownotes
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:
- Recently my Catalina Sky Survey teammate Rose Matheny discovered 8 new Earth approaching object candidates on a single night with our Schmidt telescope on Mt. Bigelow, Arizona. One of them, 2017 YO is a mile and a half diameter, main belt asteroid, while the other 7 are interesting Earth approaching objects. Another one of Rose's single night discoveries is 2017 YM1. When Rose first spotted it this space rock was moving rapidly north, at 6.9 miles per second, away from the Earth in the constellation of Ursae Major. About 5 days earlier it had passed near both the Earth and Our Moon at which time it was too far south to be seen from Arizona.
- Often observers report hearing a percussive sound, like a sonic boom from an aircraft, minutes after viewing a bright meteor fireball. In addition, in a fewer number of instances, there are many reliable reports of observers hearing popping, hissing, and rustling sounds at the same time they are observing a very bright meteor traveling though the night sky. Professional astronomers have long dismissed these reports saying that what these people hear simultaneously with their visual observations cannot be due to to sound traveling from the meteors path since sound travels 800,000 times slower than light and would take 1.5 to 4 minutes to traverse the distance that the light does in a tiny fraction of a second.
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
Share the podcast with your friends and send the Patreon link to them too!
Every bit helps! Thank you!
------------------------------------
Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
http://cosmoquest.org/Donate This show is made possible through your donations.
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
Guide To Space - Space Bites: Phobos or Bust! & "Impossible" Green Stars Are In Fact Real
https://www.youtube.com/watch?v=B9P_8oZ4rCA Hosted and recorded by: Fraser Cain (@frasercain) From Oct 23, 2026. The Japanese mission is off to Phobos. Heck, to Deimos too! And, actually, there are green stars …
Shownotes
https://www.youtube.com/watch?v=B9P_8oZ4rCA
Hosted and recorded by: Fraser Cain (@frasercain)
From Oct 23, 2026.
The Japanese mission is off to Phobos. Heck, to Deimos too! And, actually, there are green stars. Lots of colors to choose from! You want purple? We got purple!
Also: Dark matter interacts with dark matter, a mysterious Martian cloud, Euclid discovers a comet, the Milky Way's disc, a mini-mini quasar, NGC 7129 & Seagull nebula (SH 2-292) photos, Patreon question answered!
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EVSN - Exposed Planetary Core Discovered & LIGO Reveals "Spooky Popcorn"
Hosted by: Dr. Pamela L. Gay (@CosmoQuest) From July 2, 2020. Join us today as we talk about the first exposed planetary core ever discovered. We examine research that neutrinos may come from supermassive black …
Shownotes
Hosted by: Dr. Pamela L. Gay (@CosmoQuest)
From July 2, 2020.
Join us today as we talk about the first exposed planetary core ever discovered. We examine research that neutrinos may come from supermassive black holes. We look at the filaments found in the halo of galaxy cluster Abell 2255. And we find out that LIGO's mirrors can vibrate due to quantum noise.
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Space Stories - Let's Look at the Weirdest Corners of Space!
https://www.youtube.com/live/H0qVigc9gnQ Hosted by: Dr. Pamela L. Gay (@CosmoQuest) Book Talk with Dr. Kimberly K. Arcand & Megan Watzke. Streamed live on Feb 6, 2026. When some of our favorite people have a …
Shownotes
https://www.youtube.com/live/H0qVigc9gnQ
Hosted by: Dr. Pamela L. Gay (@CosmoQuest)
Book Talk with Dr. Kimberly K. Arcand & Megan Watzke.
Streamed live on Feb 6, 2026.
When some of our favorite people have a new book on one of our favorite topics, you know we have to have them on! We are super pleased to be joined by Dr. Kimberly K. Arcand and Megan Watzke who discuss their new book "Why Space Will Freak You Out" (Amazon Affiliate Link: https://amzn.to/4rzGtXw ). This colorful book, which mixes illustrations and observations of our Universe, launches February 10. Join us to learn how they picked their targets, and why you should and should not fear our universe.
We are grateful for your support on Patreon.com/CosmoQuestX
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Space Stories - Astronomy Words: Metal
Written & hosted by our Director, Avivah Yamani. Why do astronomers call oxygen and carbon metals? Explore how stars created the elements that formed planets, and eventually, us! We've added a new way to donate …
Shownotes
Written & hosted by our Director, Avivah Yamani.
Why do astronomers call oxygen and carbon metals? Explore how stars created the elements that formed planets, and eventually, us!
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Cheap Astronomy - Dear CA #142: Knowns & Unknowns
Hosted by Steve Nerlich. Who knew? Dear Cheap Astronomy – Do gravitons exist? Once again we're dealing with something hypothetical here – so much like virtual particle pairs that pop out of nowhere and can …
Shownotes
Hosted by Steve Nerlich.
Who knew?
Dear Cheap Astronomy – Do gravitons exist?
Once again we're dealing with something hypothetical here – so much like virtual particle pairs that pop out of nowhere and can evaporate black holes, it's entirely possible that gravitons exist, but at this time it's probably appropriate to entertain the notion that they might not exist either. Ten years ago we would have said the same thing about the Higgs boson, but that was positively identified by the Large Hadron Collider in 2012 and hence moved from being a hypothetical to a real particle at that time.
Dear Cheap Astronomy – Is the Universe full of explosions?
Well, yes it does seem that way. There are the various classes of novae, but also bursts of various kinds, ranging from radio to gamma ray bursts. They've traditionally been classified separately although the boundaries of those classifications often blur. The word nova means new – arising from the fact that when they happen a star may become visible due to a sudden transient brightening. A standard nova arises from binary systems in which one star is a white dwarf that gravitationally draws material off its binary companion star which is a red giant.
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Astronomy Cast Ep. 806: Mission Tech Series: Thrusters
https://www.youtube.com/watch?v=rK6w8ZHm8UM Streamed live 18 Oct 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Today we continue looking at space exploration technologies. This …
Shownotes
https://www.youtube.com/watch?v=rK6w8ZHm8UM
Streamed live 18 Oct 2026.
Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)
Today we continue looking at space exploration technologies. This time we will examine thrusters, which can reorient a spacecraft and help it maneuver in space. Maximum flexibility but you need to bring along some propellant.
Smarter Every Day's YouTube video:
I Was SCARED To Say This To NASA... (But I said it anyway)
https://www.youtube.com/watch?v=OoJsPvmFixU
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Travelers in the Night Eps. 387 & 388: Long Winter Nights & Greg's 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 …
Shownotes
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:
- Winter nights can be exhausting, productive, as well as sometimes frustrating for asteroid hunters. At the Sixty Inch Telescope on Mt. Lemmon, Arizona, near winter solstice, the night's observing starts at 6:30 PM and continues till after 6 AM which combined with start up and end tasks makes the asteroid hunter's work "day" more than 13 hours long. On such a recent long winter work night, my Catalina Sky Survey Teammate, Carson Fuls discovered an impressing total of 18 new Earth approaching objects. On the other hand on the next 3 night shift, I was treated to one night which was clear followed by two nights which were dominated by the first big snow storm of the season. The best nights are clear, cold, and calm with asteroid images which are small intense points of light. Such a night is said to have good seeing.
- My Catalina Sky Survey teammate Greg Leonard was searching for Earth approaching objects with our 60 inch telescope on Mt. Lemmon, Arizona when he discovered an interesting new comet moving through the constellation of Leo. After Greg posted his discovery observations on the Minor Planet Center's Near Earth Confirmation Page it was observed over the next 3 weeks by 10 different observatories around the world. These data were used to calculate the details of the new object's 51 year path around the Sun and give it the name Comet C/2017 W2 (Leonard).
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Guide To Space - What Happens When Black Holes Collide? Black Hole Mergers Across The Universe
https://www.youtube.com/watch?v=vvSNWnHZpjc Hosted by: Fraser Cain (@frasercain) From Oct 4, 2016. Black holes are the most impressive objects in the Universe, but when happens when they crash into each other …
Shownotes
https://www.youtube.com/watch?v=vvSNWnHZpjc
Hosted by: Fraser Cain (@frasercain)
From Oct 4, 2016.
Black holes are the most impressive objects in the Universe, but when happens when they crash into each other is absolutely mind-bending. They distort space and time itself, sending ripples out into the Universe.
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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EVSN - Repainted Rose, Worlds Colliding & White Dwarfs of Unusual Size
From October 21, 2026. Hosted by Dr. Pamela L. Gay (@CosmoQuest) This week we look at the weird results in space science. From looking at how wildly different images from different IR telescopes can be …
Shownotes
From October 21, 2026.
Hosted by Dr. Pamela L. Gay (@CosmoQuest)
This week we look at the weird results in space science. From looking at how wildly different images from different IR telescopes can be colorized, to worlds colliding, to white dwarfs of unusual size, and even to Earth's crust on the move, the news was surprising and sometimes a tad bit horrifying. And we present all of it here.
NGC 7129 — The Flower Bud Nebula. Spitzer vs. Webb color palettes:
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Cheap Astronomy - Dear CA #141: Sorting The Universe
Hosted by Steve Nerlich. A podcast of sorts… Cheap Astronomy gets organized! Dear Cheap Astronomy – How are asteroids organized? The large majority of asteroids in the solar system are in the asteroid belt …
Shownotes
Hosted by Steve Nerlich.
A podcast of sorts… Cheap Astronomy gets organized!
Dear Cheap Astronomy – How are asteroids organized?
The large majority of asteroids in the solar system are in the asteroid belt between mars and Jupiter. There are maybe 1-2 million that are more than a kilometer in diameter and millions more that are smaller than that. Nonetheless there's a huge amount of space between mars and Jupiter so it's nothing like that bit in the Empire strikes back. If you stood one asteroid is unlikely you'd be able to see another one and the odds of successfully navigating it are about one to one.
Dear Cheap Astronomy – Are primordial black holes dark matter candidates?
Well yes, though they aren't only candidates around. To recap, a primordial black hole is a hypothetical object which originated in very primordial times – probably within the first second of the Universe. It is somewhat puzzling that when the Big Bang brought lots of mass-generating particles into existence within a very small volume and at an extremely high density, it didn't form a black hole then and there – which would have then been the end of the story. But not only did things with mass suddenly come to be, they were all flung outwards as well – though primarily moving within rapidly expanding spacetime rather than actually being flung. And so here we are.
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Awesome Astronomy - The Nancy Grace Roman Space Telescope
October Part 2. Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. Damien Phillips, John Wildridge and Dustin Ruoff produce. Jeni gives us the low down on the Nancy Grace Roman Space Telescope in the first talk …
Shownotes
October Part 2.
Paul Hill and Dr. Jenifer "Dr. Dust" Millard host.
Damien Phillips, John Wildridge and Dustin Ruoff produce.
Jeni gives us the low down on the Nancy Grace Roman Space Telescope in the first talk of Fall AstroCamp 2026.
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Ask A Spaceman Ep. 282: What Happens When You Shine a Light on Nothing?
Light Up Empty Space! Hosted by Dr. Paul M. Sutter. How does the vacuum interact with light? Is it possible to use light to create something from nothing? And is "birefringence" a real word? I discuss these …
Shownotes
Light Up Empty Space!
Hosted by Dr. Paul M. Sutter.
How does the vacuum interact with light? Is it possible to use light to create something from nothing? And is "birefringence" a real word? 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!
Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Corey D, Michael P, Naila, Sam R, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, Lisa R, Kevin B, Aileen G, Michael J, Phillip L, Steven B, Mark R, Alan B, Craig B, Richard K, Joe R, David P, Justin, Tracy F, Thomas K, James C, Syamkumar M, Mark D, Bruce A, Tim Z, Linda C, The Tired Jedi, Bob C, Stephen A, James R, Allen E, Michael S, Sheryl, David W, Chris, Michael S, Erlend A, James D, Karl W, Edward K, Scott K, Vivek D, M0PPET, Brad, Azra K, Steve R, M D Malahy, Brian O, Alonna M, Joseph B, Anders J, Blaine, Ry Guy, and Phil!
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Astronomy Cast Ep. 805: Mission Tech Series - Gyroscopes & Servos
https://www.youtube.com/watch?v=mcn6f_PE14o Spinney things! Streamed live 18 Oct 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Our journey through space exploration technology …
Shownotes
https://www.youtube.com/watch?v=mcn6f_PE14o
Spinney things!
Streamed live 18 Oct 2026.
Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)
Our journey through space exploration technology continues! Today we look at the things that spin: gyros, reaction wheels, servos. Newton's laws are large and in charge today as spinning has a very useful benefit when you're in weightlessness! Today we are going to understand the nemesis of space exploration missions everywhere, get to the bottom of this, how these things works, why they fail, and maybe what's being done about it, or maybe not!
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Travelers in the Night Eps. 385 & 386: New Aten & Silent ET
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 …
Shownotes
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:
- Recently my Catalina Sky Survey teammates Carson Fuls and Greg Lenoard discovered an Aten asteroid which orbits the Sun once every 272 days and on a path that crosses the orbits of Venus and Earth a number of times each year. Atens account for only about 6% of the Earth approaching asteroids that asteroid hunters discover. They are relatively dim and difficult to discover because they spend most of their time inside the Earth's orbit with their sunlit side facing away from us. For example Carson and Greg's newly discovered asteroid, 2017 WJ16, is bright enough for asteroid hunters to track for only about 50 nights every couple of years.
- Oumuamua is the asteroid that zipped by the Earth on a trajectory that started beyond our solar system in truly deep space. After rounding our Sun at 97,000 mi/hr this unusual space rock will continue onward into deep interstellar space. The fact that this reddish object's brightness changes by a factor of 10 every 7.3 hours has been interpreted as being due to an elongated rocket or cigar shape which reflects different amounts of sun light in our direction as it tumbles through space. This strange space rock appears to be about 730 feet long and about 100 feet wide.
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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AstroMan - G Is For Galileo
Galileo turned the telescope skyward and transformed astronomy, revealing lunar mountains, sunspots, Jupiter's moons, and a Universe far larger than imagined. "ASTROMAN: the Dark Sky Guardian" is a podcast …
Shownotes
Galileo turned the telescope skyward and transformed astronomy, revealing lunar mountains, sunspots, Jupiter's moons, and a Universe far larger than imagined.
"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-Long 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 also an International Committee Member of the Dark Sky International, regularly organizing public lectures at the Hong Kong Space Museum and the Hong Kong Science Museum. He was also the author of a popular science book "Decoding the Starry Night: A Guide to Stargazing and Astrophotography".
We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.
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------------------------------------
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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Actual Astronomy - Saturn at Opposition
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. [email protected] In this …
Shownotes
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. [email protected]
In this episode, we cover key visual observing highlights for Saturn, including prominent features like the Equatorial Band and Equatorial Zone visible in amateur telescope. We also look at historical transient phenomena, such as the massive, planet-encircling "Great White Spots" that erupt in the northern hemisphere roughly once every Saturnian year.
Alexio wrote:
Hi Chris and Shane,
I saw Saturn in your Observer's Calendar show notes. I'm an amateur astronomer in Mississauga, and thought you might enjoy a website I've built called Astrochron. Its Saturn model lets you move through past and future years and watch the rings open wide, narrow to almost edge-on, then open up again with the other face in view.
Here's Saturn:
https://astrochron.app/objects/saturn
Regards,
Alexio
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------------------------------------
The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
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