The human body was not built for spaceflight, with its microgravity conditions, exposure to high-energy radiation and other ...

Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

Unlike on Earth, where the atmosphere and planetary magnetic field provide a shield from space radiation, astronauts are ...

Geomagnetic storms are capable of sparking beautiful displays of the Northern Lights across our night sky. However, there is a potential danger behind that beauty, especially now, with solar activity ...

A private spacecraft on a pretty badass mission has sent back footage of the far side of the Moon, on its way to land in the ...

A nearby supernova that peppered the Earth with cosmic rays 2-3 million years ago has been blamed for an upsurge in viruses ...