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Crash Course Astronomy
Deep Time: Crash Course Astronomy #45
Season 1
Episode 45
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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9:57
Phil takes a look at the explosive history of our cosmic backyard.
9:41
Phil looks at how gravity plays out across the universe.
9:45
Phil takes you through the cause and name of the Moon's phases.
9:28
Take a look at the cyclical phenomena that we can see at work in the universe.
11:16
Take a look at all the incredible things you can see with your naked eye.
12:11
Get to know host Phil Plait and begin with answering a simple question: what is astronomy?