Believe it or not, this long, luminous streak, speckled with bright blisters and pockets of material, is a structure like our Milky Way

Believe it or not, this long, luminous streak, speckled with bright blisters and pockets of material, is a structure like our Milky Way
When observing galaxies very similar to the Milky Way, researchers have deduced that they are slowly expanding in size
Two space telescopes have provided the most compelling confirmation yet for a collision between two black holes