As NASA astronauts Suni Williams and Butch Wilmore reunite with their families this week after spending nine unexpected months in space, we have begun to wonder: what exactly happens to the body in ...

As humans prepare for longer missions to the moon and Mars, scientists are trying to understand how space affects the human body. One of the biggest concerns is space radiation — high-energy particles ...

NASA Astronaut Sunita Williams has returned to Earth after spending over 9 moths in space - under microgravity. Even though she is back, her body is yet to re-adjust to gravity. But there is another ...