An expert in the disappearance of Amelia Earhart has revealed the final telegram the pilot sent her husband before she ...

From a Mars rover selfie to an astronaut's view of the flower moon, these space images will give you a new perspective on our planet and our universe.

An expert who has spent 20 years investigating the disappearance of Amelia Earhart has revealed what he thinks really happened.

American interests are advanced by connecting the world’s free and open spaces through enhancing connectivity, buoying ...

A long-lost photo snapped from a Navy plane in 1966 has become the unlikely key to understanding how Antarcticas ...

Two tropical storms have led to deadly inland flooding in the United States already this season, underscoring how dangerous water can be.

Looking for space to breathe? These lonely places around the world offer stillness, beauty, and a break from the noise if you ...

This 2011 astronaut photo shows the atolls of Rowley Shoals lined up in a near-perfect line off the coast of Australia. The ...