The 365 Days of 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 an educational channel, where I explain fascinating concepts in space and astronomy, but tha...

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!

This week we'll talk about Pi Day, Stephen Hawking's death, the GAO report on the JWST mission and much, much more.

 ...

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: things will only get better. Here come the supertelescopes!

We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 

...

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 towards the inner solar system. It was between the orbits of Saturn and Jupiter traveling at some 9 mi/s towards the Sun, when my Catalina Sky Survey teammate Dr. Kacper Wierzchoś discovered i...

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 astronomers, including NSF's NOIRLab's Dr. André-Nicolas Chené, may shed important light on the origin of these magnetic powerhouses. Using various telescopes around the globe, including the Canada-France-Hawai'i Telescope (CFHT) on Maunakea, the rese...

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 of Astronomy to support editing, hosting, and production costs. 

Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!

Sha...

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 the largest moons in the Solar System. Saturn has 280 or more moons in total, a total that seems to be changing daily. Jupiter has over 100 known moons so far. 

As for...

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, hosting, and production costs. 

Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!

Share the podcast with your fri...

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://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and co...

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 billion years ago, and has been expanding ever since.

Fraser Cain: So Pamela, last week we started out with the big bang and discussed the cosmic microwave bac...

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 track space junk in the atmosphere and provide the starting location and altitude for tracking clouds of environmentally problematic toxic chemical and/or nuclear contaminants released by the disintegration of reentering...

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.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 hel...

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 production costs. 

Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!

Share the podcast with your friends an...

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

Patreon thanks go out to Justin Y.

Also thanks for all the kind comments on the David Nagler Episode.

[Rich] I'm sorry, but the lads didn't give me a detailed list of sky treats to put here in the show notes. Maybe next time. I share those with my astronomy club members & they really appreciate it!

We've added a new way to d...

Today's 'guest' is HAD's This Month in Astronomical History. I'll be reading more essays from the archives: Emily McMahon's November 2020 essay titled, "Sedna: In the Depths of the Solar System", and Dr. Ken Rumstay's November 2022 essay titled, "Lunokhod 1 - The First Extraterrestrial Rover". Please note that Emily was a high school student when she wrote her essay, so you don't have to be an astronomer or astrophysicist to write for TMIAH.

H'ad astra historia is the official podcast for the Historical Astronomy Division of the American Astronomical Society. We're here to share stories from and...

Things aren't always straight-forward.

Hosted by Steve Nerlich.

Dear Cheap Astronomy – What's all the current fuss about dark energy?

Some preliminary data from the Dark Energy Spectroscopic Instrument, also known as DESI has resulted in a swath of popular science articles claiming dark energy is diminishing. 

Well…

It's worth starting by saying that many of the core project team have stressed it's just the first data release – there'll be at least four more, so everyone should probably just chill a bit until more data is available.

Dear C...

https://www.youtube.com/watch?v=aDgA3eiUANs

Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)

Streamed live June  22, 2026.

The Saturn 5 was a monster, capable of sending humans and a lander to the Moon and bringing them back again. But the number of heavy lift rockets since then has gotten pretty sparse. Now, with tens if not hundreds of thousands of satellites in the works, giant new space telescopes and multi-ton lunar landers in development there are heavy lift solutions to match. So let's talk about them! From yesterday's Saturn V...

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:

- Artificial light at night also known as light pollution is degrading human safety and health as well as damaging the natural environment on which we all depend. The loss of the connection with the natural night sky has happened over the past 100 years. Restoring the natural night sky is relatively simple and can even save money. Before restoration can...

Hosted by Dr. Jacinta Delhaize & François Campher.

Jacinta and Francois wrap up Season 6 of The Cosmic Savannah with this exciting and reflective episode, discussing the history, science and legacy of the Southern African Large Telescope (SALT) which celebrated it's 20th anniversary in November of 2025. The team is joined by Professor David Buckley from the South African Astronomical Observatory (SAAO), who served as the project scientist for the SALT project.

In this episode, we discuss the full evolution of SALT, from idea to instrument and all the chaos along the way and also what the f...

Hosted by Dr. Pamela L. Gay.

From June 17, 2026.

Join Pamela for an hour that looks at science and society as she talks with author and cosmologist Chanda Prescod-Weinstein. In her new book, "The Edge of Space-Time: Particles, Poetry, & the Cosmic Dream Boogie" Prescod-Weinstein weaves scientific and lyrical understandings of cosmology, bringing together the language of elders with the math of modern computational models. This combination puts our human state in a greater perspective of time and space that looks beyond western textbooks (Oh, and there is a lot of Star Trek referenced in there too!)<...

Hosted by our Director, Avivah Yamani.

What makes a planet potentially habitable? In this episode of Astronomy Words, we explore the habitable zone, also known as the Goldilocks Zone, and learn why worlds like Earth, Mars, Venus, TRAPPIST-1, and Kepler-186f are helping astronomers search for life beyond our 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.patreon.com/365DaysOfAstronomy and donate as much as you can!

Share the podcast with your friends an...

Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. 

Damien Phillips, John Wildridge and Dustin Ruoff produce.

The idea that sparked a billion-dollar space telescope was recorded in the most unlikely of places: a scrap of paper fished out a pocket while gondolas sailed by in Venice. In this talk, award-winning astrophysicist and science communicator Steve Eales of Cardiff University takes us on the unlikely journey of the Herschel Space Observatory, the most sensitive far-infrared space telescope yet launched. This talk was recorded at the recent AstroCamp in Cwmdu, Wales.

We've ad...

https://www.youtube.com/watch?v=Cil0v7dIkgc

Hosted by Tony Darnell.

Streamed live on Jul 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 th...

https://www.youtube.com/watch?v=3vQt1UYsV24

Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)

Streamed live on Jun 15, 2026.

Well, we're just a couple of weeks away from summer hiatus and so it's time to give you some homework. Here's our list of stuff we've been reading watching and playing. This should fill the Astronomy-Cast-shaped hole in your media landscape. On the plane, on the beach, from the passenger seat in a car, summer is a time for escaping into a good book, video, or game. From classics to...

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 March 2026.

Today's 2 topics:

- My Catalina Sky Survey teammate Tracie Beuden was observing with our Schmidt telescope on Mt. Bigelow, Arizona in the constellation of Perseus when she found 2026-AA, the first asteroid of 2026. Asteroid hunters are trying to track Tracie's discovery with our number on it far enough in advance so humans could give it a tiny nudge and make it miss...

From Orion and the Summer Triangle to Indigenous sky traditions, this episode explores how constellations became tools for navigation, storytelling, and understanding the night sky.

"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 Ho...

Hosted by Dr. Pamela Gay.

From June 10, 2026.

In this episode, we look at the SpaceX SEC initial filing and put its facts and figures in context and ask, can they do it? And can the Earth survive if they succeed?

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! 

E...

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

This month we talk about the full range of telescopic magnification powers from Low, Medium to High and how to achieve them using exit pupil. Topics include using exit pupil as a guide to power and how to successfully use high powers.

To recap Exit Pupils and Eyepieces:

We have High, Medium and Low powers,

- Low Power is in...

Are we really ready?

Hosted by Steve Nerlich.

From Dec 1, 2025.

Cheap Astronomy tries to stay sane on a trip to Mars?

Dear Cheap Astronomy – Will we just go nuts on a two-year mission to Mars

Well, we might if the space radiation doesn't kill us first. As we may have noted in previous episodes, current timelines for when we'll land on Mars seem to take little account of the fact that there are many mission components we don't even have conceptual solutions for let alone anything flight-tested or even pr...

All Hail Dust!

Hosted by Dr. Paul M. Sutter.

Why is dust so annoying? But where does it come from, and what can it do? And is dust responsible for the creation of life? 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, as...

https://www.youtube.com/watch?v=tSIp-RwWegA

Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)

Streamed live June 10, 2026.

We're about to take a much needed 2 month hiatus. But just because we're not here doesn't mean space stops existing and doing things. Today, let's give a preview of the big events due to happen in space this summer so you can prepare yourself and make sure you don't miss a thing! From meteors to moon landings and more, join Fraser and Pamela as the look at what you can enjoy this...

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 March 2026.

Today's 2 topics:

- In 1892 the world's largest telescope, the Lick Observatory's 36 inch refracting telescope made the news when E.E. Barnard discovered, Amalthea, the 5th moon of Jupiter. In 2025 this historic telescope made the news again when on Christmas morning winds of 114 mph blew off a 3 ton piece of the shutter on its dome. The adaptive optics research pioneered at Lick Observatory...

Using the Gemini North telescope in Hawai'i and the European Southern Observatory's Very Large Telescope, a team of astronomers measured wind speeds on seven very hot, Jupiter-like exoplanets. The observations revealed that the winds on these planets are most likely governed by magnetic fields, providing the first robust measurement of magnetic activity on planets outside the Solar System. In this podcast, Dr. Hayley Beltz describes how these magnetic fields were discovered from observations using data from the Gemini North telescope in Hawai'i and the European Southern Observatory's Very Large Telescope.

Bios:

- Rob S...

From June 3, 2026.

In this episode, we're going to look at Psyche's success at Mars, the cool 3I-ATLAS science coming from Europa Clipper and JUICE en route to the Jupiter system, and we also look at JWST's efforts to study exoplanetary atmospheres and the weird weather of other worlds.

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...

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

This month we talk about the Moon meeting up with the planets and some interesting Lunar Features. We also talk about some of the best deep sky objects to observe at this time of year.

I was away then sick so haven't replied to everyone's emails or I've been late. We'll read some on the next show and I'll go over what I've been up to.

...

Paul Hill and Dr. Jenifer "Dr. Dust" Millard host. 

Damien Phillips, John Wildridge and Dustin Ruoff produce.

It's the chatty astrowaffle episode! Psyche rushing past Mars, Power instrument at VLT, GCSE Astronomy exams and listener 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 them too! 

Every bit helps! Than...

https://www.youtube.com/watch?v=0NEnjp1I6GQ

Hosted  by Tony Darnell.

From Sep 7, 2017.

Vega, or alpha lyrae, is the brightest star in the constellation Lyra the Harp and it is the fifth brightest star overall in our night sky. It is also the second brightest star in the northern celestial hemisphere.

Vega has also been called by astronomers the second most important star in our sky next to the Sun.

If you like this content, please consider supporting Deep Astronomy on Patreon!

W...

https://www.youtube.com/watch?v=HwCk5uldz4g

Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest)

Streamed live on Jun 1, 2026.

Mars is cold & dry today, but the evidence is growing that it used to be warmer & wetter. with seas & oceans that covered large parts of its surface. With the additional findings of the chemicals for life, the search for life on Mars is getting pretty interesting! New results from Perseverance and Curiosity describe a past Mars with complex chemistry and water. But did it have life?

Background...

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 April 2029 on one of the luckiest Friday the 13th in human history the 1,500 ft by 500 ft asteroid Apophis will pass within 23,600 miles of the Earth's surface traveling at some 4.6 mi/s. This is extremely fortunate since an Apophis impact would release the energy of scores of nuclear weapons and cause wide spread devastation. NASA's OSIRIS-APEX will become the...

Hosted by our Director, Avivah Yamani.

Mercury reaches its best evening appearance of the year, Venus and Jupiter meet in twilight, the Moon visits the planets, and the Milky Way shines brightly over equatorial skies. Join us for a tour of the June 2026 night sky.

Clear skies!

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...