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Crash Course Astronomy

Introduction to the Solar System: Crash Course Astronomy #9

In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.

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Full Episodes
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Episode
11:09
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.
Season 1 Episode 46
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Episode
15:00
Crash Course Astronomy

Deep Time: Crash Course Astronomy #45

Our Universe’s days are numbered.
Season 1 Episode 45
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Episode
12:21
Crash Course Astronomy

A Brief History of the Universe: Crash Course Astronomy #44

Thanks to the wonders of physics, we can map a timeline of the universe’s history.
Season 1 Episode 44
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Episode
11:08
Crash Course Astronomy

Dark Energy, Cosmology part 2: Crash Course Astronomy #43

Most of the universe is made up of a mysterious entity that pervades space: dark energy.
Season 1 Episode 43
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Episode
13:09
Crash Course Astronomy

The Big Bang, Cosmology part 1: Crash Course Astronomy #42

Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING!
Season 1 Episode 42
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Episode
11:45
Crash Course Astronomy

Dark Matter: Crash Course Astronomy #41

Today on Crash Course Astronomy, Phil dives into some very dark matters.
Season 1 Episode 41
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Episode
13:51
Crash Course Astronomy

Gamma-Ray Bursts: Crash Course Astronomy #40

The discovery of gamma-ray bursts is an epic story.
Season 1 Episode 40
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Episode
15:20
Crash Course Astronomy

Galaxies, part 2: Crash Course Astronomy #39

Active galaxies pour out lots of energy.
Season 1 Episode 39
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Episode
11:51
Crash Course Astronomy

Galaxies, part 1: Crash Course Astronomy #38

Galaxies contain gas, dust, and billions of stars or more.
Season 1 Episode 38
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Episode
10:59
Crash Course Astronomy

The Milky Way: Crash Course Astronomy #37

Today we’re talking about our galactic neighborhood: The Milky Way.
Season 1 Episode 37
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