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Astronomy Cast

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. Pame...

Episodes

20 of 690 episodes

Ep. 806: Mission Tech Series: Thrusters

Streamed live 18 Oct 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Today we continue looking at space explo...

29:25Oct 26, 2026

Ep. 805: Mission Tech Series: Gyroscopes & Servos

Spinney things! Streamed live 18 Oct 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Our journey through spac...

33:02Oct 19, 2026

Ep. 804: Mission Tech Series: Fairings, Docking & Airlocks

Ad-Free thanks to your support at patreon.astronomycast.com! Instead of sending up an entire space station for every mission, you can just s...

30:31Oct 12, 2026

Ep. 803: Mission Tech Series: Engines & Stages

Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) Streamed on October 3, 2026. Today our series continues with our de...

36:12Oct 5, 2026

Ep. 802: Mission Tech Series: Rocket & Spacecraft 411

Help us keep Astronomy Cast ad-free: https://patreon.com/astronomycast We removed all ads from the show. We need to get to 1500 patrons to k...

32:02Sep 28, 2026

Ep. 801: The Beginning & End of Everything - Part 2

Help us keep Astronomy Cast ad-free: https://patreon.com/astronomycast We removed all ads from the show. We need to get to 1500 patrons to k...

37:07Sep 21, 2026

Astronomy Cast Can't Go On Like This

After 20 years, it's time to make some changes. With your patronage we can ditch the ads & turn up the science. Please join our Patreon comm...

08:50Sep 15, 2026

Ep. 800: The Beginning & End of Everything - Part 1

Streamed live on Sep 7, 2026. Hosted by: Fraser Cain (@frasercain) and Dr. Pamela L. Gay (@CosmoQuest) This show is supported through people...

39:27Sep 14, 2026

Ep. 799: Heavy Lift Rockets

Astronomy Cast Ep. 799: Heavy Lift Rockets By Fraser Cain & Dr. Pamela Gay Streamed live June 22, 2026. The Saturn 5 was a monster, capable...

39:07Jun 29, 2026

Ep. 798: Our Summer Media List

Astronomy Cast Ep. 798: Our Summer Media List By Fraser Cain & Dr. Pamela Gay Streamed live on Jun 15, 2026. Well, we're just a couple of we...

34:55Jun 22, 2026

Ep. 797: Summer in Space

Astronomy Cast Ep. 797: Summer in Space By Fraser Cain & Dr. Pamela Gay Streamed live June 10, 2026. We're about to take a much needed 2 mon...

34:35Jun 15, 2026

Ep. 796: Oceans & Organics on Mars

Astronomy Cast Ep. 796: Oceans & Organics on Mars By Fraser Cain & Dr. Pamela Gay Streamed live on Jun 1, 2026. Mars is cold & dry today, bu...

30:35Jun 8, 2026

Ep. 795: Expanse Science

Astronomy Cast Ep. 795: Expanse Science By Fraser Cain & Dr. Pamela Gay Streamed live on May 10, 2026. This is the final episode of our seri...

32:29Jun 1, 2026

Ep. 794: Stargate Science

Astronomy Cast Ep. 794: Stargate Science By Fraser Cain & Dr. Pamela Gay Streamed live on May 10, 2026. We continue our ad-hoc miniseries th...

38:48May 18, 2026

Ep. 793: Star Trek Science

Astronomy Cast Ep. 793: Star Trek Science By Fraser Cain & Dr. Pamela Gay Streamed live May 4, 2026. Today we continue our mini-series; eval...

34:58May 11, 2026

Ep. 792: Star Wars Science

Astronomy Cast Ep. 792: Star Wars Science By Fraser Cain & Dr. Pamela Gay Streamed live April 29, 2026. May the fourth be with you! Isn't th...

40:26May 4, 2026

Ep. 791: Chang'e Sample Return

Astronomy Cast Ep. 791: Chang'e Sample Return By Fraser Cain & Dr. Pamela Gay Streamed live on Apr 20, 2026. Last week we talked about sampl...

33:15Apr 27, 2026

Ep. 790: Meteorites From Other Worlds

Astronomy Cast Ep. 790: Meteorites From Other Worlds By Fraser Cain & Dr. Pamela Gay Streamed live April 17, 2026. Even though humanity has...

33:33Apr 20, 2026

Ep. 789: What Happens When a Planet's Star Dies

Astronomy Cast Ep. 789: What Happens When a Planet's Star Dies By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 30, 2026. A star like th...

29:14Apr 6, 2026

Ep. 788: Life's Molecules Form in Space

Astronomy Cast Ep. 788: Life's Molecules Form in Space By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 23, 2026. The theory of evolutio...

32:27Mar 30, 2026