Creating a continent
A brief respite
A similar collision in the Southwest about 370 million years ago twisted rocks throughout what is now Utah and Nevada.
Voyager 2 Creeps Closer to the Edge of the Solar System
The 2018 Leonid Meteor Shower Peaks This Weekend! Here's What to Expect
California's Deadliest Fire Is Seen Engulfing Paradise in 'Astonishing' Satellite Images
Warmer, Wetter Than Usual Winter Headed for Much of US
Shocked Squirrel and Shy Owl Shine in Wildlife Comedy Photos