Veteran NASA astronaut Suni Williams announced her retirement Tuesday. Her extended mission to orbit due to the troubled Boeing Starliner test flight was her final foray.

For Suni Williams, 608 days in space was enough to call it a career. The 60-year-old NASA astronaut who flew on three ...

CAPE CANAVERAL, Fla. -- SpaceX completed the last big test of its crew capsule before launching astronauts in the next few months, mimicking an emergency escape shortly after liftoff Sunday. No one ...

KEY LARGO, Florida -- Astronauts are set to begin testing new tools that could be used on the Moon. NASA is planning another manned mission to the Moon. Astronauts are getting ready by performing ...