Ep. 545: Weird Issues: Are comets asteroids or are asteroids comets?
Astronomy Cast5 Nov 2019

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 simple. Comets were snowballs from the outer Solar System, and asteroids were rocks from the inner Solar System. But now everything's all shades of grey. Astronomers have found asteroids that behave like comets and comets that behave like asteroids.

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AstronomyCast 169: The Fermi Mission

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AstronomyCast 168: Enrico Fermi

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Ep. 15: Listener Questions Answered

Ep. 15: Listener Questions Answered

We finally get organized enough deal with several listener questions: isn�t dark matter just regular stuff we can�t see? how can parts of the Universe be expanding faster than the speed of light? what will Betelgeuse look like when it explodes as a supernova? what�s the speed of gravity? All these and more questions are answered.

18 Dec 200629min

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