Extraterrestrial life, or alien life (colloquially aliens), is life that originates from another world rather than on Earth. No extraterrestrial life has yet been scientifically or conclusively detected.

May 24, 2025 · Discover interesting facts about where alien life forms are likely to exist, and what they look like.

Feb 17, 2026 · extraterrestrial life, life that may exist or may have existed in the universe outside of Earth. The search for extraterrestrial life encompasses many fundamental scientific questions.

Dec 13, 2025 · The search for extraterrestrial life has accelerated over the past decade as astrobiology turns its focus toward chemical signatures, ocean worlds, and shifting models of planetary habitability.

Aug 27, 2025 · The evidence for extraterrestrial life, while still largely indirect, raises profound questions that extend beyond science. If life exists elsewhere in the universe, what does it mean for humanity’s …

Jan 30, 2025 · And while it's long gone unanswered, a new discovery could finally unlock the secret of alien life. It's thanks to the OSIRIS-Rex, a NASA spacecraft that in 2018 landed on an asteroid …

2 days ago · Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million people banded together in a real-time search for aliens -- with ...

Dec 5, 2025 · Extraterrestrial Life coverage from Scientific American, featuring news and articles about advances in the field.

Feb 17, 2026 · While idea may violate Occam’s razor, “it remains a speculative but logically open alternative,” says biologist Robert Endres.

Sep 11, 2025 · To be more exact, there are multiple hunts for alien life currently underway. On Mars, a rover is collecting samples that may determine if life ever existed on the red planet.