Sen. Ted Cruz (R-Texas) on Sunday said a potential United States acquisition of Greenland would be “overwhelmingly in America’s national best interest.  “When it comes to Greenland, I want to ...

This video examines a moment in Earth’s history when environmental change occurred far faster than expected. Geological and ...

The capsule splashed down in the Pacific Ocean off the coast of San Diego at 3:41 a.m. ET on Thursday, according to Space.com ...

Scientists in Antarctica on Wednesday inaugurated the first global repository of mountain ice cores, preserving the history ...

The History Channel series returns January 15 with "Skulls of the Gods," examining whether these archaeological finds have ...

Particles from Earth’s atmosphere have been carried into space by solar wind and have been landing on the moon for billions ...