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.

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.

4 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 ...

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.

Feb 20, 2026 · Finding aliens: Astrobiologists say we could find evidence of microbial life within the next 10–20 years. What does that mean? Where are we looking? Projects, chronology, explained

Aug 28, 2025 · Even without direct contact, the possibility of alien life reshapes our worldview. It encourages humility, emphasizing that Earth is but one planet among billions, and that life is not …

Feb 6, 2026 · 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 …

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

Finding alien life would be one of the greatest discoveries in human history. Many others are curious to see how these aliens are similar to life on Earth. They ask questions like what kind of environments …