Dwarf galaxy
Milky Way Still Bears the 10-billion-year-old Scars of a Galactic Collision
Galaxies collide with each other on a pretty regular basis. Our own Milky Way, for instance, has gobbled up dozens of smaller galaxies in the past, and Andromeda is currently hurtling towards us at 109 km (68 mi) per second.
Nine neighborly “dwarf galaxies” discovered near our own
British astronomers discovered nine unknown “dwarf galaxies”, satellites to our own. This discovery enriches our galactic neighborhood. This is the largest number of nearby galaxies that have ever been discovered en masse. This is also the first discovery of dwarf galaxies for a decade.