Colliding Dwarf Planets Created a 'Cat's Tail'

Hubble’s first visible-light view of the Cat’s Tail near Beta Pictoris offers clues to a possible collision between two large icy worlds.

Astronomers think they just witnessed two planets colliding

According to an analysis of the strange changes in a Sun-like star named Gaia-GIC-1, located around 11,600 light-years away, its strange behavior can best be explained by two baby planets colliding in its immediate vicinity.