It was the inimitable late Carl Sagan who had kindled in many of us curiosity about all things extra-terrestrial and the ...

Given the size and age of the universe, it should be full of species with technology far more advanced than our own. But so far there is no trace ...

Nearly 5,000 exoplanets had been discovered at the time of the video, but the worlds closest to Earth may give us our best ...

The prospect of Reform UK leader Nigel Farage being humiliated by Count Binface in this week’s byelection generated global ...

A NASA rover image of a rock formation on Mars resembling a doorway has sparked speculation about alien life, though experts ...

Hundreds of Venus-like planets could soon help determine why some worlds become sweltering greenhouse hellscapes while others ...

Sometimes, "unidentified" means just what it sounds like.

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature of the universe.

For centuries, humanity has wondered whether we are truly alone in the universe — and now, NASA’s top official believes the ...

Mars is not an American frontier. It is a universal heritage site. The first human footprint on Martian soil must represent a species, not a flag. If we launch a crew without a global mandate, we risk ...

However, while what we know about the universe suggests aliens may exist, there are three compelling reasons why they ...