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Crash Course Astronomy

Galaxies, part 1: Crash Course Astronomy #38

Season 1 Episode 38

Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular. Galaxies can collide, and grow in size by eating each other.

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Black Holes: Crash Course Astronomy #33
12:11
Stellar mass black holes form when a very massive star dies, and its core collapses.
Neutron Stars: Crash Course Astronomy #32
12:42
In the aftermath of a some stars we find a weird little object known as a neutron star.
High Mass Stars: Crash Course Astronomy #31
12:02
Massive stars fuse heavier elements in their cores than lower mass stars.
White Dwarfs & Planetary Nebulae: Crash Course Astronomy #30
11:09
What comes next after the death of a low mass star? A white dwarf.
Low Mass Stars: Crash Course Astronomy #29
12:02
Today we are talking about the life -- and death -- of stars.
Brown Dwarfs: Crash Course Astronomy #28
11:05
Brown dwarfs have a mass that places them between giant planets and small stars.
Exoplanets: Crash Course Astronomy #27
11:49
There are many other planets outside of our own solar system, but finding them is tricky.
Stars: Crash Course Astronomy #26
10:40
Phil explains stars and how they can be categorized using their spectra.
Distances: Crash Course Astronomy #25
11:20
How do astronomers make sense out of the vastness of space?
Light: Crash Course Astronomy #24
10:33
In order to understand more of universe, we need to talk a little bit about light.
Meteors: Crash Course Astronomy #23
11:21
What the difference between a meteor, meteorite, and meteoroid?
The Oort Cloud: Crash Course Astronomy #22
11:40
WeÕre heading to the outskirts of the solar system.
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