New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

You don't have to travel all the way to Peru to see something as amazing as the Nazca Lines. There is a similar ancient site in California.

One photographer put the age of starlight into perspective with stunning projections on some of Earth's oldest rock ...

By exploring Yellowstone's geothermal springs, scientists discovered the microbes that reveal how life adapted to harsh conditions billions of years ago.

Scientists at University of Oregon discover one of the oldest known animal sex chromosomes in California two-spot octopus.