NASA astronaut Butch Wilmore reported hearing an odd pulsing sound from Boeing's Starliner spacecraft that is currently ...

This animation shows Boeing Starliner launching to space on board a United Launch Alliance Atlas V rocket. Starliner is one of two spacecraft built to carry astronauts to and from the International ...

Astronaut Don Pettit, who has been at the International Space Station since September, is set to land Saturday in Kazakhstan ...

Astronaut Don Pettit, who has been at the International Space Station since September, is set to land Saturday in Kazakhstan with two Russians.