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. 685: Manufacturing In Space
Astronomy Cast Ep. 685: Manufacturing In Space by Fraser Cain & Dr. Pamela Gay Streamed live on Jun 5, 2023. Launching satellites from Earth is counter-productive. You’ve got to make a satellite that…
00:29:32 |
Mon 12 Jun 2023
Ep. 684: Too Big, Too Soon: Massive Early Galaxies Defy Expectations
Astronomy Cast Ep. 684: Too Big, Too Soon: Massive Early Galaxies Defy Expectations by Fraser Cain & Dr. Pamela Gay Streamed live on May 29, 2023. One of JWST’s top jobs is to peer deeper into the Un…
00:29:13 |
Mon 05 Jun 2023
Ep. 683: Cosmic Dawn
Astronomy Cast Ep. 683: Cosmic Dawn by Fraser Cain & Dr. Pamela Gay Streamed live on May 22, 2023. After the cosmic microwave background radiation was released, the Universe returned to darkness, clo…
00:26:54 |
Mon 29 May 2023
Ep. 682: Ultra-Diffuse Galaxies & Dark Matter
Astronomy Cast Ep. 682: Ultra-Diffuse Galaxies & Dark Matter by Fraser Cain & Dr. Pamela Ga Streamed live on May 15, 2023. Astronomers first noticed the strange behaviors of rotating galaxies almost …
00:28:33 |
Mon 22 May 2023
Ep. 681: Kilonovae
Astronomy Cast Ep. 681: Kilonovae by Fraser Cain & Dr. Pamela Gay Streamed live on May 7, 2023. In 2017, astronomers detected the gravitational waves and electromagnetic radiation from colliding neut…
00:29:50 |
Mon 15 May 2023
Ep. 680: Rogue Black Holes
Astronomy Cast Ep. 680: Rogue Black Holes by Fraser Cain & Dr. Pamela Gay Streamed live on May 1, 2023. Last week we talked about rogue stars. This week we’re going to take things up a notch and talk…
00:27:58 |
Mon 08 May 2023
Ep. 679: High(per) Velocity Stars
Astronomy Cast Ep. 679: High(per) Velocity Stars by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 24, 2023. Most stars in the Milky Way are trapped in here with us, doomed to orbit around and aro…
00:27:42 |
Mon 01 May 2023
Ep. 678: World Building: Planet Formation, Growth & Ejection
Astronomy Cast Ep. 678: World Building: Planet Formation, Growth & Ejection by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 17, 2023. Okay sci-fi writers, today we’re going to give you a guided …
00:29:38 |
Mon 24 Apr 2023
Ep. 677: The Answer is Always Dust
Astronomy Cast Ep. 677: The Answer is Always Dust by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 10, 2023. Whenever astronomers discover something surprising, the answer often turns out to be d…
00:32:17 |
Mon 17 Apr 2023
Ep. 676: Other Things With Rings
Astronomy Cast Ep. 676: Other Things With Rings by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 3, 2023. We’ve spent a lot of time gushing about Saturn’s rings, but there are other places with r…
00:30:54 |
Mon 10 Apr 2023
Ep. 675: Exotic Forms of Ice
Astronomy Cast Ep. 675: Exotic Forms of Ice by Fraser Cain & Dr. Pamela Gay Ice is ice, right? You know, what you get when water freezes. Well, maybe here on Earth. But across the Universe, water can…
00:30:05 |
Mon 03 Apr 2023
Ep. 674: Asteroid Early Warning Systems
Astronomy Cast Ep. 674: Asteroid Early Warning Systems by Fraser Cain & Dr. Pamela Gay The asteroid apocalypse is one of those existential crises that keep astronomers up at night. But the DART missi…
00:30:36 |
Mon 27 Mar 2023
Ep. 673: How to See Satellites (or Avoid Seeing Them)
Astronomy Cast Ep. 673: How to See Satellites (or Avoid Seeing Them) by Fraser Cain & Dr. Pamela Gay Streamed live on Mar 13, 2023. If you’re in dark skies and look up, you’re certain to see a satell…
00:34:37 |
Mon 20 Mar 2023
Ep. 672: Space Debris Removal
Astronomy Cast Ep. 672: Space Debris Removal by Fraser Cain & Dr. Pamela Gay Streamed live on Mar 8, 2023. We’ve talked about the rising problem of space junk. Okay, we know it’s an issue. So what ca…
00:32:52 |
Mon 13 Mar 2023
Ep. 671: The Consequences to Breaking Space Laws
Astronomy Cast Ep. 671: The Consequences to Breaking Space Laws by Fraser Cain & Dr. Pamela Gay Streamed live on Mar 1, 2023. Last week we talked about the laws that govern space exploration. This we…
00:33:57 |
Mon 06 Mar 2023
Ep. 670 - Governing Space: The 1967 Outer Space Treaty & More!
Astronomy Cast Ep. 670 - Governing Space: The 1967 Outer Space Treaty & More! by Fraser Cain & Dr. Pamela Ga Streamed live on Feb 13, 2023. The Universe was inaccessible for most of human history, bu…
00:30:40 |
Mon 20 Feb 2023
Ep. 669: Challenges to Dark Energy
Astronomy Cast Ep. 669: Challenges to Dark Energy by Fraser Cain & Dr. Pamela Gay Streamed live on Feb 6, 2023. It’s been over 20 years since astronomers first discovered that the expansion of the Un…
00:29:17 |
Mon 13 Feb 2023
Ep. 668: The Crisis In Cosmology
Astronomy Cast Ep. 668: The Crisis In Cosmology by Fraser Cain & Dr. Pamela Gay Streamed live on Jan 30, 2023. Astronomers have made extremely accurate measurements of the expansion rate of the Unive…
00:30:51 |
Mon 06 Feb 2023
Ep. 667: JWST First Science
Astronomy Cast Ep. 667: JWST First Science by Fraser Cain & Dr. Pamela Gay Streamed live on Jan 23, 2023. Astronomers came together in January to present their newest research. And not surprisingly, …
00:29:07 |
Mon 30 Jan 2023
Ep. 666: Solar System References to the Underworld
Sign up through to make a difference in the climate crisis, and Wren will plant 10 extra trees in your name! Streamed live on Jan 17, 2023. Well, we did it. We made it to episode 666, an auspiciou…
00:26:38 |
Mon 23 Jan 2023
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