As four astronauts embark on a mission around the the moon, experts examine the impact that space travel has on the human body.

NASA's Artemis 2 astronauts have now traveled farther from Earth than any people in history, breaking the mark set by the ...

For more than half a century, spaceflight has meant towering chemical rockets, disposable stages and cramped capsules perched on top. The approach has worked spectacularly for reaching orbit and the ...