Astronomy Cast
Take a fact-based journey through the cosmos. Tune in to hear weekly discussions on astronomical topics ranging from planets to cosmology. Hosted by Fraser Cain (Universe Today) and Dr. Pamela L. Gay (Planetary Science Institute), this show brings the questions of an avid astronomy lover direct to an astronomer. Together Fraser and Pamela explore what is known and being discovered about the universe around us. Astronomy Cast is supported thru patreon.com/AstronomyCast.
- Update frequency
- every 7 days
- Average duration
- 31 minutes
- Episodes
- 644
- Years Active
- 2006 - 2025
Ep. 624: Small Rocky Bodies (Including Phobos & Deimos)
Astronomy Cast Ep. 624: Small Rocky Bodies (Including Phobos & Deimos) by Fraser Cain & Dr. Pamela Gay We've talked about the icy objects of the Solar System, today let's talk about space rocks. Ther…
00:26:05 |
Mon 13 Dec 2021
Ep. 623: NEOs: Concern or Nah
Astronomy Cast Ep. 623: NEOs: Concern or Nah by Fraser Cain & Dr. Pamela Gay Are asteroids dangerous? Well, just ask the dinosaurs and they’ll tell you a sad story of fiery death. It turns out we’re …
00:34:01 |
Mon 06 Dec 2021
Ep. 622: Rockier Moons & Giant Asteroids
Astronomy Cast Ep. 622: Rockier Moons & Giant Asteroids by Fraser Cain & Dr. Pamela Gay So a rock is a rock is a rock. Right? Across the solar system there are giant rocky asteroids and even “gianter…
00:29:44 |
Mon 29 Nov 2021
Ep. 621: Gas Giants
Astronomy Cast Ep. 621: Gas Giants by Fraser Cain & Dr. Pamela Gay For the longest time the only gas giant planets that we knew about were Jupiter and Saturn. But now, in the age of extrasolar planet…
00:28:58 |
Mon 22 Nov 2021
Ep. 620: Why Getting to the Outer Worlds is So Difficult
Astronomy Cast Ep. 620: Why Getting to the Outer Worlds is So Difficult by Fraser Cain & Dr. Pamela Gay Good News! Over the next few years we’re gonna see a flotilla of new missions headed to Jupiter…
00:27:16 |
Mon 15 Nov 2021
Ep. 619: Icy Moons & Dwarf Planets
Astronomy Cast Ep. 619: Icy Moons & Dwarf Planets by Fraser Cain & Dr. Pamela Gay The outer Solar System is far enough from the Sun that water doesn't get blasted away into deep space. In this icy re…
00:36:52 |
Mon 08 Nov 2021
Ep. 618: Ice Giants
Astronomy Cast Ep. 618: Ice Giants by Fraser Cain & Dr. Pamela Gay So we’re learning more & more about the outer planets of the solar system. Uranus & Neptune are Ice Giants, filled with water and ot…
00:27:50 |
Mon 01 Nov 2021
Ep. 617: Hangout-A-Thon Episode 2 - Crowdfunding Science
Astronomy Cast Ep. 617: Hangout-A-Thon Episode 2 - Crowdfunding Science by Fraser Cain & Dr. Pamela Gay Funding for basic science has always been tricky business, coming mainly from universities, gov…
00:36:23 |
Sat 30 Oct 2021
Ep. 616: Hangout-A-Thon Episode 1 - The Great Observatories
Astronomy Cast Ep. 616: Hangout-A-Thon Episode 1 - The Great Observatories by Fraser Cain & Dr. Pamela Gay Well, you’re familiar with the Hubble Space Telescope of course, but it’s just one of NASA’s…
00:33:24 |
Fri 29 Oct 2021
Ep. 615: Planet 9
Astronomy Cast Ep. 615: Planet 9 by Fraser Cain & Dr. Pamela Gay After Pluto lost its planethood we were down to 8 planets. But there’s growing evidence of another world or worlds out beyond the orbi…
00:32:25 |
Mon 18 Oct 2021
Ep. 614: Centaurs, Comets & Asteroids
Astronomy Cast Ep. 614: Centaurs, Comets & Asteroids by Fraser Cain & Dr. Pamela Gay So there are asteroids, and there are comets. But there’s an entirely separate class of objects called centaurs. B…
00:27:29 |
Mon 11 Oct 2021
Ep. 613: Pluto’s Demotion: 15 Years Later
Astronomy Cast - Ep. 613: Pluto’s Demotion: 15 Years Later by Fraser Cain & Dr. Pamela Gay It's been 15 years since Pluto was kicked out of the planet club. It also happens to be the topic of our ver…
00:26:47 |
Mon 04 Oct 2021
Ep. 612: Hiatus Message
Astronomy Cast Ep. 612: Hiatus Message by Fraser Cain & Dr. Pamela Gay Fraser & Pamela will return in early September with more episodes of Astronomy Cast. We hope you all have a safe, relaxing and p…
00:03:24 |
Mon 12 Jul 2021
Ep. 612: The SETI Renaissance
Astronomy Cast Ep. 612: The SETI Renaissance by Fraser Cain & Dr. Pamela Gay Last week we talked about the various ways that astronomers could detect the presence of intelligent civilizations by obse…
00:29:13 |
Mon 05 Jul 2021
Ep. 611: What is Required to Confirm Alien Life: Intelligence Edition
Astronomy Cast Ep. 611: What is Required to Confirm Alien Life: Intelligence Edition by Fraser Cain & Dr. Pamela Gay Last week we talked about what it's going to take to confirm basic biological life…
00:30:36 |
Mon 28 Jun 2021
Ep. 610: What is Required to Confirm Alien Life: Non-Sentient Edition
Astronomy Cast Ep. 610: What is Required to Confirm Alien Life: Non-Sentient Edition by Fraser Cain & Dr. Pamela Gay Are we alone in the Universe? It's one of the biggest scientific questions we can …
00:28:06 |
Mon 21 Jun 2021
Ep. 609: Volcanos With Benefits: Lava Tubes, Hydro Thermal Vents & More
Astronomy Cast Ep. 609: Volcanos With Benefits: Lava Tubes, Hydro Thermal Vents & More by Fraser Cain & Dr. Pamela Gay Volcanos can be some of the worst natural disasters that we can experience here …
00:28:30 |
Mon 14 Jun 2021
Ep. 608: NASA Perseverance, The First 100 Days
Astronomy Cast Ep. 608: NASA Perseverance, The First 100 Days by Fraser Cain & Dr. Pamela Gay As you all know, Pamela refuses to talk about any missions which aren't actually doing science. Well, Per…
00:27:55 |
Mon 07 Jun 2021
Ep. 607: InSight and Earthquakes
Astronomy Cast Ep. 607: InSight and Earthquakes by Fraser Cain & Dr. Pamela Gay Mars is cold and dead today, but the massive volcanoes tell us what the planet used to be like, millions and even billi…
00:27:49 |
Mon 31 May 2021
Ep. 606 - Time Dilation: Skipping Thru Time
Astronomy Cast Ep. 606 - Time Dilation: Skipping Thru Time by Fraser Cain & Dr. Pamela Gay Have you ever wanted to be a time traveler? Well, good news! You're time traveling right now. Into the futur…
00:25:10 |
Mon 24 May 2021
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