What matters to you.
0:00
0:00
NEXT UP:

Black Holes: Crash Course Astronomy #33

Season 1 Episode 33

About the Episode

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.

Aired: 09/24/15 | Expires: | Runtime: 12m 11s