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

China has released a stunning compilation of views of Earth from the Tiangong space station. Credit: Space.com | footage ...

Apollo 8, 1968. The first view by human eyes of Earth. The following is the transcript of the conversation between the ...

A story that begins with three animals riding in a balloon ends with the discovery of protons impacting our atmosphere with ...

Photographer extraordinaire Don Pettit is about to return to Earth following a seven-month stay aboard the space station. Take a moment to enjoy his best work.