International Space Station

How astronauts adjust when back on Earth after being in space

Astronauts face several risks during spaceflight, including exposure to radiation.

2 NASA astronauts head back to Earth after an unexpectedly long mission in space

NASA astronauts Suni Williams and Butch Wilmore were on the International Space Station more than nine months, despite launching into space in June for what was expected to be an eight-day mission.

NASA and SpaceX make second attempt this week to launch astronauts

The arrival of the new crew will pave the way for the return of two astronauts who have been "stuck" on the station since June of last year.

In the quest for new cancer treatments, researchers look to outer space

The Southern Research team is studying how bacteria reacts in the microgravity environment, and whether it prompts the development of novel cancer therapies.