The Antennae Galaxies (NGC 4038 and NGC 4039) are a pair of interacting galaxies in the constellation Corvus. They are a prime example of how galactic collisions can dramatically reshape galaxies.
Galactic Collision: These two spiral galaxies are currently undergoing a collision, a process that began about 200-300 million years ago.
"Antennae" Shape: The collision has created long tidal tails of stars, gas, and dust that extend outwards, resembling the antennae of an insect, hence the name.
Starburst Activity: The collision has triggered a burst of intense star formation, creating numerous young, hot, and massive stars.
Future Evolution: The collision will eventually lead to the merger of the two galaxies, forming a single, larger elliptical galaxy.