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

There are billions of planets in the Universe that, theoretically, can support life. But so far, we haven't discovered any ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Following speculation that comets could have been alien spacecrafts, more and more experts in the field are convinced that ...

Historically, many scientists and society have been fascinated by the prospect of making contact with extraterrestrial ...

Europa has a vast, saltwater ocean beneath its icy shell, with more than twice the amount of water in all of Earth’s oceans ...

Humanity is on the way to confirming the existence of non-human entities and making contact with aliens within the next 50 ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Harvard's Avi Loeb warns interstellar comet 3I/ATLAS could be alien tech. Experts weigh in on planetary defence and the risks ...

Pocock, a space scientist at University College London and BBC presenter, predicts alien life will be found by 2075 but ...

Steven Spielberg's eerie 'Disclosure Day' trailer has ignited alien theories online. Is it hinting at hidden extraterrestrial ...