The 365 Days of Astronomy

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...

From May 27, 2026.

Trisha Epp joins us to talking about NASA's collaboration with Freelancer, and how Innovation is now getting crowdsourced. Join in to learn how to launch your own Moonshot! Guest Trisha Epp is a Physicist, Philosopher, and Futurist with a Masters in Geophysics from CalTech and a duel bachelors in physics and philosphy from the University of British Columbia. Since 2023, she's been the Director of Innovation for Freelancer.com's "NASA Tournament Lab". This crowdsourcing innovative invites the public to help solve global problems ranging from maternal morbidity to risk prediction.

We've added a...

https://www.youtube.com/watch?v=larzCw9Vn-w

From Jul 21, 2020.

When the Apollo astronauts first landed on the Moon, they couldn't go far on foot. That's why the three final missions were equipped with Lunar Roving Vehicles, or Moon buggies, which allowed the astronauts to cover much more ground and do more science.

Now that NASA is returning to the Moon by 2024 as part of its Artemis Program, it's considering a fleet of new vehicles that will help astronauts roam far and wide across the surface of the Moon. 

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

Damien Phillips, John Wildridge and Dustin Ruoff produce.

This month a bit of a JWST fest with news about the cosmic Web (Webb?! ) and those little red dots that seem to be breaking cosmology. There is also our normal skyguide and moon guide.

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 wit...

Hosted by Dr. Paul M. Sutter.

What does is mean for the Universe to have a wave function? How does Hawking's "no boundary" proposal mean that the Universe comes from itself? And is it really the final answer? 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 sp...

https://www.youtube.com/watch?v=n14RYk2qFtc

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

Streamed live on May 10, 2026.

This is the final episode of our series on sci-fi universes. And this week we will tackle "The Expanse". Now we've got fusion drives, Proto-matter, g-forces! Listen up, belta lawda! Let's look at the science of our own possible (with a side of aliens) future. 

This show is supported through people like you on Patreon.com/AstronomyCast 

In this episode, we'd like to tha...

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:

- Around the world those who value the natural night sky are evaluating the effects of light pollution. In addition to impairing astronomy and star gazing the past 100 years of increasing light pollution is proving to be harmful to human health and the natural world upon which we all depend. The purpose of the Dark Sky Network is monitor and...

https://spacescoop.org/en/scoops/2605/story-of-suns-road-trip-through-the-milky-way-with-friends/

Did you know that our Sun and its many, uh, childhood friends were all born at a place much closer to the center of our Galaxy? Over the years, our Sun and its friends have been on sort of a speedy galactic tour traveling a distance of almost 10,000 light-years from the center of the Milky Way. But traveling much farther than that on a long curved trajectory! Astronomers call this the 'mass migration' of stars. Kind of like a flock of migrating birds. 

How and when did th...

From May 20, 2026.

Pamela is on the road in this episode as we look at how (and why) astronomers keep finding the improbable, follow the evidence to possible sources of little red dots, study the power of big star clusters to move gas, and examine the merger history of little black holes into bigger ones.

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

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

Share the podcast wi...

Today's 'guest' is HAD's This Month in Astronomical History. I'll be reading two essays from the archives: Dr. Rebecca Charbonneau's Aug 2018 essay titled, "The Mysterious Wow! Signal" and Dr. Richard Fienberg's May 2022 essay titled, "The First Telescope on the Moon." This Month in Astronomical History is a lead-in to next month's interview with the new Editor, Dr. Mugdha Polimera.

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 about the people who study the stars, planets, and the cosmos. We'll b...

Hosted by our Director, Avivah Yamani!

Today we are traveling beyond our solar system to talk about one of the most exciting discoveries in modern astronomy. Exoplanets!

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...

Hosted by Tony Darnell.

From July 17, 2023.

The James Webb Space Telescope Has confirmed its first exoplanet, LHS 475 b, in the southern constellation Octans, using the transit technique. The TESS satellite detected the possible presence of it and JWST's NIRSpec instrument has confirmed the observation. The planet is 99% the diameter of Earth & 91.4% of Earth's mass. So your first hope is that it's a second Earth. The orbital period is only 2 days, though, so it's assuredly tidally locked & very hot. It's unlikely to have an atmosphere either, so you can forget about finding life there.

http://www.astronomycast.com/archive/

From May 25, 2009.

Last week (May 18, 2009) we took a peek into the tiny world of quantum mechanics, and its unintuitive, but very accurate mathematical predictions. And although we all appreciate the physics lesson, you're probably wondering what this all has to do with astronomy. Well, today we bring it all home and explain how quantum mechanics has given astronomers one of the most powerful tools they have to study the nature of the cosmos.

Spectra — an excellent overview by James B. Kaler

Doppler Shift — UCLA

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:

- In the distant past things in our solar system were very much more wild and violent than they are today. 4.5 billion years ago a Mars sized object called Theia impacted Earth producing our Moon. Scientists are able research this event using the current chemical compositions of the Earth and Moon.

- Since in its early h...

Hosted by Dr. Jacinta Delhaize, Dr. Tshiamiso Makwela, Dr. Daniel Cunnama & François Campher.

In this episode of The Cosmic Savannah, Dan and Francois sit down with Dr. Nick Erasmus to explore the ATLAS Digital Assistant and the growing role of Artificial Intelligence and Machine Learning in astronomy. They discuss how these technologies are reshaping the modern astronomical landscape and what this means for the role of astronomers in the years ahead.

Dr. Nick Erasmus, a returning guest now in his third appearance on the show, works closely with the ATLAS tel...

From May 13, 2026.

In today's episode where we look at the Voyager mission's exploration beyond our solar system, the organics Mars Curiosity Rover has discovered, the distribution of planets uncovered by the TESS mission, and how JWST measured the surface of a rocky world 50 light years away!

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...

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 this episode we read some listener emails and discuss our recent observing sessions, sketching and Shane talks about his first experience with the PiFinder.

Pi Finder!