Scientists have long wondered how Earth’s continents first formed. Now, a team of geologists from the University of Hong Kong ...

An astronaut has captured an incredible burst of electricity above Earth. NASA’s Nichole Ayers managed to snap a phenomenon ...

For the first time, scientists have been able to determine how sea level must have varied also on thousand-year timescales during the last 540 million years.

The twin caverns, El Pakiva and Tecopa, showcase some of California’s most unusual cave decorations. Marvel at the “cave ...

Micrometeorites raining down from space may have provided the perfect surfaces for the first primitive cells to form on Earth ...