NASA's two stuck astronauts are taking their first spacewalk together, exiting the International Space Station almost eight months after moving in.

As the Boeing Starliner Calypso approached the ISS, the capsule's thrusters malfunctioned and NASA ruled it too dangerous for ...

The remaining balance must be settled before the travel date or within 45 days, with no extra cost. Sunita Williams and Barry Wilmore have reached a milestone in space; here's all you need to know ...