Vela Supernova Remnant in Visible Light
Credit: Digitized Sky Survey, ESA/ESO/NASA FITS Liberator. Color Composite: Davide De Martin (Skyfactory)
The explosion is over but the consequences continue. About eleven thousand years ago a star in the constellation of Vela could be seen to explode, creating a strange point of light briefly visible to humans living near the beginning of recorded history. The outer layers of the star crashed into the interstellar medium, driving a shock wave that is still visible today.