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Crash Course Astronomy
Black Holes: Crash Course Astronomy #33
Season 1
Episode 33
Stellar mass black holes form when a very massive star dies, and its core collapses. Black holes come in different sizes, but for all of them, the escape velocity is greater than the speed of light, so nothing can escape, not matter or light.
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11:46
Binary stars are gravitationally bound together in the same system.

12:42
In the aftermath of a some stars we find a weird little object known as a neutron star.

12:02
Massive stars fuse heavier elements in their cores than lower mass stars.

11:09
What comes next after the death of a low mass star? A white dwarf.

12:02
Today we are talking about the life -- and death -- of stars.

11:05
Brown dwarfs have a mass that places them between giant planets and small stars.

11:49
There are many other planets outside of our own solar system, but finding them is tricky.

10:40
Phil explains stars and how they can be categorized using their spectra.

11:20
How do astronomers make sense out of the vastness of space?

10:33
In order to understand more of universe, we need to talk a little bit about light.

11:21
What the difference between a meteor, meteorite, and meteoroid?

11:40
We're heading to the outskirts of the solar system.