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Science and Nature

Crash Course Astronomy

Asteroids: Crash Course Astronomy #20

Welcome to school without the classroom! Join host Phil Plait and discover everything there is to know about the cosmos.

Asteroids: Crash Course Astronomy #20

Season 1 Episode 20 | 11m 32s

Now that we've finished our tour of the planets, we're headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between Mars and Jupiter, but some get near the Earth.

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Crash Course Astronomy

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Crash Course Astronomy

Life in the Universe: Crash Course Astronomy #46

Phil gives the course a send off with a look at some of his favorite topics.

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The Oort Cloud: Crash Course Astronomy #22

We're heading to the outskirts of the solar system.

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Meteors: Crash Course Astronomy #23

What the difference between a meteor, meteorite, and meteoroid?

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