See amazing views of colliding galaxies NGC 520 and barred galaxy IC 4212 in imagery from the Siena Galaxy Atlas. Credit: ...

Astronomers now believe the Milky Way's "inevitable" collision with a neighboring galaxy is much less likely than originally thought.

NASA has released a new composite image of two spiral galaxies, NGC 2207 and IC 2163, as they begin a multi-billion-year process of merging into a single celestial entity. This event was captured with ...