Hubble Telescope Captures Rare ‘Light Echo’ From Star Explosion

A supernova remnant.

When a star explodes (a supernova), it sends its intense burst of light out in all directions. On rare occasions, in the months and years that follow, rings of light or ‘light echoes’ spread out from the original supernova position. (Image: The Hubble Heritage Team (STScI/AURA) via NASA / ESA /HEIC)