Protecting astronauts beyond the ISS

Astronauts venturing beyond the safety of the International Space Station (ISS) will face increased exposure to cosmic radiation.

Opportunity finds Martian rock with possible signs of water

NASA's Mars rover Opportunity - recently arrived at the Endeavour crater - has found a rock that's different from anything it's seen before.

To X-37B Or Not To X-37B? That Is The Question.

Changes are coming rapidly to NASA, and the future of the United States' dedication and capability to mount manned space missions are increasingly in question.