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.

Jan 28, 2026 · Scientists may need to broaden their horizons in their search for alien life.

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 9, 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.

Sep 16, 2025 · So far, the only life we know of is right here on our planet Earth. But we’re looking. The big question – Is there life beyond Earth? – comes with an ironic asterisk: we don't really have a …

Nov 20, 2025 · Extraterrestrial Life coverage from Scientific American, featuring news and articles about advances in the field.

Apr 17, 2025 · Most popular sci-fi books and TV shows suggest humanoid beings could live on other planets. But when astronomers are searching for extra-terrestrial life, it is usually in the form of …

When astronomers announced Kepler-452b, they were not just adding another distant world to a growing catalog. They were pointing to a planet that orbits a star much like our own, in a region …