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Crash Course Astronomy

Introduction to Astronomy: Crash Course Astronomy #1

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?"

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Episode
12:01
Crash Course Astronomy

Nebulae: Crash Course Astronomy #36

Astronomers study a lot of things, but nebulae might be the most beautiful of them all.
Season 1 Episode 36
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Episode
10:21
Crash Course Astronomy

Star Clusters: Crash Course Astronomy #35

Last week we covered multiple star systems, but what if we added thousands to the mix?
Season 1 Episode 35
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Episode
11:46
Crash Course Astronomy

Binary and Multiple Stars: Crash Course Astronomy #34

Binary stars are gravitationally bound together in the same system.
Season 1 Episode 34
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Episode
12:11
Crash Course Astronomy

Black Holes: Crash Course Astronomy #33

Stellar mass black holes form when a very massive star dies, and its core collapses.
Season 1 Episode 33
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Episode
12:42
Crash Course Astronomy

Neutron Stars: Crash Course Astronomy #32

In the aftermath of a some stars we find a weird little object known as a neutron star.
Season 1 Episode 32
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Episode
12:02
Crash Course Astronomy

High Mass Stars: Crash Course Astronomy #31

Massive stars fuse heavier elements in their cores than lower mass stars.
Season 1 Episode 31
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Episode
11:09
Crash Course Astronomy

White Dwarfs & Planetary Nebulae: Crash Course Astronomy #30

What comes next after the death of a low mass star? A white dwarf.
Season 1 Episode 30
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Episode
12:02
Crash Course Astronomy

Low Mass Stars: Crash Course Astronomy #29

Today we are talking about the life -- and death -- of stars.
Season 1 Episode 29
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Episode
11:05
Crash Course Astronomy

Brown Dwarfs: Crash Course Astronomy #28

Brown dwarfs have a mass that places them between giant planets and small stars.
Season 1 Episode 28
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Episode
11:49
Crash Course Astronomy

Exoplanets: Crash Course Astronomy #27

There are many other planets outside of our own solar system, but finding them is tricky.
Season 1 Episode 27
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