On a clear night, the sky may seem peaceful and empty. Yet beyond the stars visible to our eyes lies a universe so vast that it is difficult to imagine. Our gal ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

What started as a quiet rivalry between two billionaire space dreamers has turned into one of the ugliest feuds in tech. Elon ...

Alien director Ridley Scott eventually returned to the franchise, but couldn't complete his ambitious plans. Here's what his ...

Nasa is attempting an unprecedented mission to rescue its ageing Neil Gehrels Swift Observatory before it re-enters Earth’s ...

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

US firm Vast is developing spinning space stations with artificial gravity to keep astronauts healthy on deep-space missions and push the search for alien life.

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

Scientists propose a simple but powerful new method for detecting traces of alien biology, whether on Jupiter's icy moons, in ...

During the 1960s, the United States prepared to fend off nuclear missile attacks from the Soviet Union—unaware that the ...

The European-led LIFE mission aims to use spacecraft in formation to look for biosignatures.