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

Harvard's Avi Loeb investigates whether the interstellar object 3I/ATLAS is leaking artificial propellants, suggesting that ...

ICE arrests over 100 illegal alien truck drivers from Mexico, India, Russia and other countries in California highway sweep ...

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

Seth Rogen voices a pot-smoking alien in this underrated 2011 sci-fi comedy. Join Simon Pegg and Nick Frost on a chaotic road ...

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

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

NASA’s Europa Clipper mission is set to investigate Jupiter’s icy moon for signs of a vast subsurface ocean and the chemical ...

For the first time, scientists have directly detected molecules in a Frisbee of gas and dust swirling around an alien gas-giant planet. “I didn’t think this was possible,” says astronomer Sierra Grant ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

Drop onto dangerously reactive alien planets where every pixel is physically simulated. Craft wild guns and abilities that ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity outside the solar system," according to a University of Cambridge study.