Season 1

Video thumbnail: Crash Course Astronomy Life in the Universe: Crash Course Astronomy #46

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.

Life in the Universe: Crash Course Astronomy #46

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

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.

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

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

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.

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

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

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!

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

Video thumbnail: Crash Course Astronomy Dark Matter: Crash Course Astronomy #41

Crash Course Astronomy

Dark Matter: Crash Course Astronomy #41

Today on Crash Course Astronomy, Phil dives into some very dark matters.

Dark Matter: Crash Course Astronomy #41

Video thumbnail: Crash Course Astronomy The Milky Way: Crash Course Astronomy #37

Crash Course Astronomy

The Milky Way: Crash Course Astronomy #37

Today we’re talking about our galactic neighborhood: The Milky Way.

The Milky Way: Crash Course Astronomy #37

Video thumbnail: Crash Course Astronomy Nebulae: Crash Course Astronomy #36

Crash Course Astronomy

Nebulae: Crash Course Astronomy #36

Astronomers study a lot of things, but nebulae might be the most beautiful of them all.

Nebulae: Crash Course Astronomy #36

Video thumbnail: Crash Course Astronomy Star Clusters: Crash Course Astronomy #35

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?

Star Clusters: Crash Course Astronomy #35

Video thumbnail: Crash Course Astronomy Black Holes: Crash Course Astronomy #33

Crash Course Astronomy

Black Holes: Crash Course Astronomy #33

Stellar mass black holes form when a very massive star dies, and its core collapses.

Black Holes: Crash Course Astronomy #33

Video thumbnail: Crash Course Astronomy Neutron Stars: Crash Course Astronomy #32

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.

Neutron Stars: Crash Course Astronomy #32

Video thumbnail: Crash Course Astronomy High Mass Stars: Crash Course Astronomy #31

Crash Course Astronomy

High Mass Stars: Crash Course Astronomy #31

Massive stars fuse heavier elements in their cores than lower mass stars.

High Mass Stars: Crash Course Astronomy #31

Video thumbnail: Crash Course Astronomy Brown Dwarfs: Crash Course Astronomy #28

Crash Course Astronomy

Brown Dwarfs: Crash Course Astronomy #28

Brown dwarfs have a mass that places them between giant planets and small stars.

Brown Dwarfs: Crash Course Astronomy #28

Video thumbnail: Crash Course Astronomy Exoplanets: Crash Course Astronomy #27

Crash Course Astronomy

Exoplanets: Crash Course Astronomy #27

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

Exoplanets: Crash Course Astronomy #27

Video thumbnail: Crash Course Astronomy Stars: Crash Course Astronomy #26

Crash Course Astronomy

Stars: Crash Course Astronomy #26

Phil explains stars and how they can be categorized using their spectra.

Stars: Crash Course Astronomy #26

Video thumbnail: Crash Course Astronomy Distances: Crash Course Astronomy #25

Crash Course Astronomy

Distances: Crash Course Astronomy #25

How do astronomers make sense out of the vastness of space?

Distances: Crash Course Astronomy #25

Video thumbnail: Crash Course Astronomy Light: Crash Course Astronomy #24

Crash Course Astronomy

Light: Crash Course Astronomy #24

In order to understand more of universe, we need to talk a little bit about light.

Light: Crash Course Astronomy #24

Video thumbnail: Crash Course Astronomy Meteors: Crash Course Astronomy #23

Crash Course Astronomy

Meteors: Crash Course Astronomy #23

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

Meteors: Crash Course Astronomy #23