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Science and Nature

Crash Course Astronomy

Deep Time: Crash Course Astronomy #45

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

Deep Time: Crash Course Astronomy #45

Season 1 Episode 45 | 15m 0s

As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered.

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Crash Course Astronomy

Watch more episodes

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.

Crash Course Astronomy

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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