In short. Episode 135, Black hole /

Episode 135 - Black Hole: Astrophysicists are now convinced that at the heart of every galaxy is a super massive black hole. It's called a Black Hole because its gravity is so strong that not even light can escape from it. Its mass is billions of times that of our Sun.

Bibliographic Details
Format:	Video
Language:	English
Language Notes:	In English.
Published:	Derry, NH : Chip Taylor Communications, 2011.
Series:	Academic Video Online
Subjects:	Black holes (Astronomy) Gravitational collapse. Trous noirs (Astronomie) Effondrement gravitationnel. Gravitational collapse Documentaries and Factual Films documentary film. Documentary films Short films Short films. Documentary films. Courts métrages. Documentaires.
Online Access:	Connect to this streaming video (Alexander Street Press)

Description
Summary:	Episode 135 - Black Hole: Astrophysicists are now convinced that at the heart of every galaxy is a super massive black hole. It's called a Black Hole because its gravity is so strong that not even light can escape from it. Its mass is billions of times that of our Sun.
Item Description:	"A lesson on almost everything". Title from resource description page (viewed March 11, 2019).
Physical Description:	1 online resource (3 minutes)
Playing Time:	00:02:39