Scientists propose that a moon base could act as an isolated first line of biological defense against extraterrestrial samples that might be harmful to Earth's biosphere.

Imagine the possibilities of discovering alien life on the super-Earth exoplanet K2-18b.

The scientific community tends to employ ‘confidence of life’ detection scales: a multi-step ‘ladder’ that begins with biosignatures.

Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature Astronomy, researchers discuss the consequences of these so-called false-negative results.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.

UFO researchers say upcoming US defence files on unexplained phenomena could reveal proof of alien life within weeks, potentially supporting claims extraterrestrials are already on Earth, even as mainstream scientists remain deeply sceptical.

The skepticism and debate around the question of "are we alone in the universe" makes the field of astrobiology more cautious When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The search for ...

According to popular media, the search for alien life involves advanced technology, space exploration and sometimes even government conspiracies and secret programs. But according to University of Victoria (UVic) astronomer Jon Willis, author of "The Pale ...

Fictional and nonfictional takes on extraterrestrial life. Steven Rowley’s new novel Take Me With You is about a man whose husband is abducted by aliens. The author says the premise stemmed from one he often discusses with his own husband: If you had the chance to be taken by aliens,