Strangest Things in Space

Like life on Earth, galaxies can 'eat' each other and evolve over time. The Milky Way's neighbor, Andromeda, is currently dining on one of it's satellites. More than a dozen star clusters are scattered throughout Andromeda, the cosmic remains of past meals.
This image is from a simulation of Andromeda and our galaxy colliding, and event that is thought will take place in about 3 billion years.