Ep. 780: When Asteroids & Comets Attack!

Ep. 780: When Asteroids & Comets Attack!

Astronomy Cast Ep. 780: When Asteroids & Comets Attack! By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 26, 2026. We live in a cosmic shooting gallery. It's not a matter of "if" but "when"! Dinosaurs, blah, blah, blah. You know the drill. But seriously, folks, it's raining rocks & ice out there! How seriously should we take it? What happens when a variety of different objects hit the Earth? Different kinds of objects affect Earth very differently when they impact. Let's discuss what makes an impactor more or less dangerous. This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Burry Gowen, Eric Lee, Jeanette Wink, Michael Purcell, Andrew Poelstra, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Joe McTee, Sergey Manouilov, Siggi Kemmler, Sergio Sancevero

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CosmoQuest Hangoutathon Promo

CosmoQuest Hangoutathon Promo

Hi everyone, Producer Susie here. This weekend, December 21-23, 2019, we will be having our CosmoQuest Hangoutathon. For 40 straight hours, our team will be bringing you guests, science and fun live o...

20 Joulu 20191min

Ep. 551: Missing Epochs - Observing before the CMBR

Ep. 551: Missing Epochs - Observing before the CMBR

551: Missing Epochs - Observing before the CMBR Astronomy Cast 551: Missing Epochs - Observing before the CMBR by Fraser Cain & Dr. Pamela Gay The Cosmic Microwave Background Radiation is the earliest...

16 Joulu 201927min

Ep. 550: Missing Epochs - Observing the Cosmic Dark Ages

Ep. 550: Missing Epochs - Observing the Cosmic Dark Ages

550: Missing Epochs - Observing the Cosmic Dark Ages Astronomy Cast 550: Missing Epochs - Observing the Cosmic Dark Ages by Fraser Cain & Dr. Pamela Gay Powerful observatories like Hubble and the Very...

7 Joulu 201929min

Ep. 549: Stellar nucleosynthesis revisited: In and on and around dead stars

Ep. 549: Stellar nucleosynthesis revisited: In and on and around dead stars

549: Stellar nucleosynthesis revisited: In and on and around dead stars Astronomy Cast 549: Stellar nucleosynthesis revisited: In and on and around dead stars by Fraser Cain & Dr. Pamela Gay Last week...

2 Joulu 201928min

Ep. 548: Stellar nucleosynthesis revisited: In stellar cores & atmospheres

Ep. 548: Stellar nucleosynthesis revisited: In stellar cores & atmospheres

548: Stellar nucleosynthesis revisited: In stellar cores & atmospheres Astronomy Cast 548: Stellar nucleosynthesis revisited: In stellar cores & atmospheres by Fraser Cain & Dr. Pamela Gay The Univers...

25 Marras 201931min

Ep. 547: Why Astronomy Still Needs Humans

Ep. 547: Why Astronomy Still Needs Humans

547: Why Astronomy Still Needs Humans Astronomy Cast 547: Why Astronomy Still Needs Humans by Fraser Cain & Dr. Pamela Gay Few sciences have been able to take advantage of the power of computers like ...

18 Marras 201929min

Ep. 546: Weird Issues: Planetary Migration

Ep. 546: Weird Issues: Planetary Migration

546: Weird Issues: Planetary Migration Astronomy Cast 546: Weird Issues: Planetary Migration by Fraser Cain & Dr. Pamela Gay Before we discovered other planets, our Solar System seemed like a perfectl...

11 Marras 201928min

Ep. 545: Weird Issues: Are comets asteroids or are asteroids comets?

Ep. 545: Weird Issues: Are comets asteroids or are asteroids comets?

545: Weird Issues: Are comets asteroids or are asteroids comets? Astronomy Cast 545: Weird Issues: Are comets asteroids or are asteroids comets? by Fraser Cain & Dr. Pamela Gay Things used to be so si...

5 Marras 201929min

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