Aliens in Our Imagination: Friendly or Frightening? From the pointy ears of the Vulcans to the razor-sharp teeth of the Xenomorph, humanity has never stopped imagining what aliens might look like.

Recent scientific findings on K2-18b and Mars sparked alien life speculation. A survey revealed few astrobiologists believed ...

NASA and its top scientists are distancing themselves from a space agency researcher who concludes that he found alien bacterial life in meteorites that were collected many decades ago. Richard Hoover ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists say tiny exoplanets smaller than Mars simply can't hold an atmosphere long enough for alien life to survive. ©Image ...

The newly discovered exoplanets, designated as GJ 9827 b, c and d, are located fairly close to their host star, completing orbits within 6.2 days. ESO A nearby 'super‑Earth' just 25 light years from ...

Meteorite fragments recovered from a New Jersey home several years ago — but kept quiet until last week — apparently hold "alien world chemistry," scientists revealed. Researchers at the SETI ...