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

James Webb has detected a molecule in the atmosphere of the exoplanet K2-18b that could be linked to life. The molecule, ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

Elon Musk doesn't believe aliens have visited planet Earth and thinks UFOs have more to do with the United States government and less with little green men, RadarOnline.com can reveal. The world's ...

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

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

Avi Loeb argued that humanity spent 70 years waiting for alien radio signals when it should have been searching its own backyard. The discovery of interstellar objects — a 2014 meteor, ‘Oumuamua, and ...

Steven Spielberg’s new UFO movie has reignited speculation within the alien conspiracy theory community, especially after cryptic billboards teasing the upcoming film popped up across the country this ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

NASA’s James Webb Space Telescope has found the most compelling evidence to date that a rocky planet beyond the solar system may have an atmosphere. Although it’s not Earth-like, a planet called ...