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 ...

The mission is still in the early stages of its conception, with contracts given recently to firms.

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

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

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

In 1988, the Soviet Union launched two of its most ambitious spacecraft ever built not toward Mars itself, but toward one of ...

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

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?

In the searing Mediterranean summer, wildfires turn dangerous in minutes. Greece has learned that at a terrible cost. In 2018 ...

Besiege Broken Beyond launched June 22 on Steam, adding inverse-square-law multi-body orbital gravity, 13 new space blocks, ...

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