Scientists examine the cosmic battles being waged between celestial bodies as galaxies smash into each other, stars collide with the force of several nuclear bombs, and black holes fuse in a deadly fireworks display. Even Earth's own galaxy marches toward a clash with its closest neighbor, Andromeda.
By entering your email address, you agree to our Terms of Use and acknowledge the Privacy Policy. discovery and its affiliates may use your email address to provide updates, ads, and offers.
To withdraw your consent or learn more about your rights, see the Privacy Policy.