Astronomy on MSN

July 4, 1054: The Crab Nebula supernova explodes

On July 4, 1054, a supernova explosion occurred, marking the death of a star thought to be nine to 11 times more massive than ...

Astronomers have discovered the first binary system with the explosion of both stars

A research team has discovered a second supernova remnant hidden behind the bright Medusa Nebula in the constellation Gemini in data from 16 years of observations by NASA's Fermi gamma-ray space ...