Data collected from a once-defunct NASA satellite show that Earth grew two extra radiation belts following a supercharged ...

The event also offers geologists a rarely seen opening study of ocean birth in real-time, an event never detected before. The process might take millions of years, but its effects are already being ...

The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes what we know about the early universe.

Related: 10 Earth impact craters you must see Mono Lake, located in California near Yosemite National Park, is one of North America's oldest lakes, over a million years old. Its unique environment ...

The worlds accompanying Earth around the Sun are varied in size, shape, color, and composition. In one glance, an observer can see the barren, airless lunar surface and a cold, desert planet that ...