As NASA eyes Mars and the moon, scientists warn: the human brain may not bounce back from prolonged time in space.

The human body was not built for spaceflight, with its microgravity conditions, exposure to high-energy radiation and other issues. As a result, trekking beyond the Earth’s confines causes many ...

There is a well-known experience astronauts have when they first observe the Earth from low space. This phenomenon, known as ...