Hubble Captures a Monster Merger

This Hubble Picture of the Week features Arp 122, a peculiar galaxy that in fact comprises two galaxies — NGC 6040, the tilted, warped spiral galaxy and LEDA 59642, the round, face-on spiral — that are in the midst of a collision.

https://www.nasa.gov/image-detail/when-one-plus-one-eventually-equals-one/