Supernova – Space – Astronomy

By |2018-05-31T11:49:31-07:00August 19th, 2017|Physics|0 Comments

Supernova from space (thanks to NASA and the Hubble Telescope) What is a supernova? Supernovas are exploding stars. Red giant stars explode when they have used up their hydrogen and helium fuel, and converted most of their atoms to iron atoms. A red giant star explodes Red giant stars have a lot of gravity pulling them inward. Normally they don't collapse inward because the nuclear [...]