May the faint chemical signals drifting through the atmosphere of a distant world be the long-sought message that we are not alone. Astronomers have reported seeing an unusual and strong combination ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Scientists used the world's largest single-dish radio telescope to scan comet 3I/ATLAS for signs of extraterrestrial life, but found no artificial radio emissions.

One of Britain’s most prominent space scientists believes humanity may finally get an answer to one of its oldest questions within the next few decades. Maggie Aderin-Pocock says she is “absolutely ...

As far as underwhelming headlines go: "No Alien Life Found on Comet" must rank very close to the top. An article with this title appeared in the Guardian on July 6 in response to a story claiming that ...

The afternoon of 7 August 1996 isn’t a time that sticks in many people’s minds. But if things had worked out differently, it might have been etched into our collective memory. At 1.15pm, US President ...