The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

Many experts believe that aliens exist in the universe, with the key elements needed to sustain life found on comets, ...

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

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 ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

We’ve likely had at least one close encounter of the 3I kind before. Harvard scientist Avi Loeb claims that not only does 3I/ATLAS potentially have alien origins, but that this wouldn’t be the first ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

Tech mogul Elon Musk has weighed in on UFO sightings, asserting that neither he nor SpaceX has encountered any evidence of alien visitors. He suggests ...

"The universe is a pretty big place. So if it's just us... seems like an awful waste of space," goes a line from the 1997 film "Contact." In the movie, Jodie Foster plays Dr. Ellie Arroway, a radio ...

An ancient asteroid older than Earth itself has reignited debate over whether life began in space. NASA's Bennu discovery ...