Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Astonishingly, we can identify molecules present in the atmospheres of exoplanets.

For as long as humans have looked up at the night sky, we've wondered who, or what, might be looking back. From ancient myths about gods descending from the heavens to 20th-century UFO sightings and ...

SETI@home has been one of the largest citizen science projects ever, with millions of users around the world.

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The thought experiment suggests that we need to avoid human biases in our ...

It's one of life's biggest questions – are we alone in the universe? Now, in good news for sci–fi fans, one of Britain's top space scientists has declared she is 'absolutely convinced' there are ...

Astronomers have detected the first-ever "radio signal" coming from the interstellar comet 3I/ATLAS, right as it passed the halfway mark on its oneway trip through the solar system. And while this may ...