Vladimir Putin jokes that interstellar comet 3I/ATLAS is a 'secret weapon' as the mysterious object sweeps past Earth.

Is NASA hiding the truth about 3I/ATLAS? Explore the 'cosmic rebel' defying physics and why legal experts say a lawsuit may ...

Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.

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 ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

Mysterious rocky exoplanet with cratered surface floating in front of a colorful cosmic nebula filled with glowing stars, ...

The faraway moon has 'a slushy high-pressure ice layer' similar to the melting Arctic that could hide extraterrestrial life.

The 3I/ATLAS interstellar object, which a number of scientists consider to be potentially technological and likely to pose a threat to humanity, is rapidly approaching Earth, causing a new round of ...

Brown dwarfs: too small to be stars, too big to be planets. Only discovered in the 1990s, these in-between cosmic objects aren’t big enough to burn as hot and bright as a true star, instead usually ...

The surface of Venus is scoured with strange, quasi-circular features called coronae. Unlike anything seen on Earth today, they can stretch hundreds of miles in diameter, even going past the thousand ...

Noah Hawley discussed the future of Alien: Earth and how its finale sets up what comes next. In a new interview, he confirmed he has already mapped out plans for more seasons. He also addressed how he ...