Longtime NASA astronaut Don Pettit is set to return from his fourth trip to space on Saturday night. Here are some of his ...

Fast-moving and bright meteors are marks of the spring's annual Lyrid meteor shower. A few of them could be the ultra-bright ...

A camera affixed to the International Space Station recently spotted some curious symbols amid a barren desert landscape.

Nasa astronaut returns from space station on his 70th birthday - Space observers raised concerns about Don Pettit’s health ...