Living in the constant free fall of outer space can do a number on your body, from muscle atrophy to psychological malaise, ...

While most people assume their height remains constant, science shows that due to gravity, humans can become 1–2 centimeters shorter by the end of the day. But in space, the effect is far more ...

Astronauts need a balanced diet to stay healthy and strong while they’re in space, and that’s no easy task. Since cooking is almost impossible in zero gravity, their food must be prepared in a way ...

Astronauts’ brains can change shape and shift positions during stays in space, according to a new study with implications for NASA’s goals to conduct long-duration missions to the moon and Mars. The ...