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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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 Nov 201929min

Ep. 544: Weird Issues: Biosignatures

Ep. 544: Weird Issues: Biosignatures

544: Weird Issues: Biosignatures Astronomy Cast 544: Weird Issues: Biosignatures by Fraser Cain & Dr. Pamela Gay Once again, another place where the Universe is going to make this difficult for us. Pr...

28 Okt 201929min

Halley's Meteor Shower and Two spacecraft updates

Halley's Meteor Shower and Two spacecraft updates

Got clear skies? Go out tonight and catch the Orionids Meteor shower, a storm of falling stars generated by Halley's comet. Later this week, we'll see aurora like those that will one day be predicted ...

21 Okt 20197min

Ep. 543: Weird Issues: The Habitable Zone

Ep. 543: Weird Issues: The Habitable Zone

543: Weird Issues: The Habitable Zone Astronomy Cast 543: Weird Issues: The Habitable Zone by Fraser Cain & Dr. Pamela Gay Our series on Universe weirdness marches on. This week we take a look at the ...

20 Okt 201927min

Ep. 542: Weird Issues: The Age of the Universe

Ep. 542: Weird Issues: The Age of the Universe

542: Weird Issues: The Age of the Universe Astronomy Cast 542: Weird Issues: The Age of the Universe by Fraser Cain & Dr. Pamela Gay Our series on Universe weirdness continues, this time we learn how ...

14 Okt 201929min

Ep. 541: Weird Issues: Expansion Rate of the Universe

Ep. 541: Weird Issues: Expansion Rate of the Universe

541: Weird Issues: Expansion Rate of the Universe Astronomy Cast 541: Weird Issues: Expansion Rate of the Universe by Fraser Cain & Dr. Pamela Gay Just when the Universe was starting to make sense, th...

7 Okt 201929min

Ep. 540: Weird Issues: How Do (or Don't) Planets Form?

Ep. 540: Weird Issues: How Do (or Don't) Planets Form?

540: Weird Issues: How Do (or Don't) Planets Form? Astronomy Cast 540: Weird Issues: How Do (or Don't) Planets Form? by Fraser Cain & Dr. Pamela Gay As astronomers started to discover planets orbiting...

30 Sep 201931min

Ep. 539: Weird Issues: Why We Don't Know the Age of Saturn's Rings

Ep. 539: Weird Issues: Why We Don't Know the Age of Saturn's Rings

539: Weird Issues: Why We Don't Know the Age of Saturn's Rings Astronomy Cast 539: Weird Issues: Why We Don't Know the Age of Saturn's Rings by Fraser Cain & Dr. Pamela Gay How old are Saturn's rings?...

23 Sep 201930min

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