Stepped-up interest in UFOs also is swirling as the United States heads back toward the moon with Wednesday's launch of ...

Did NASA discover city lights on an alien planet? This video explores the implications and details of the findings that ...

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us? (AP video: ...

'As the number of exoplanets we've discovered increases, the question about life existing somewhere other than the Earth ...

Steven Spielberg has made a lot of movies about aliens.

Life on Earth is a precious thing, especially given what astronomers know about the visible universe. Although researchers have so far identified over 6,000 exoplanets beyond our solar system, only a ...

WASHINGTON, March 16 (Reuters) - Astronomers have spotted a planet orbiting a star in our neighborhood of the Milky Way galaxy that presents a unique hellscape - covered with a perpetual ocean of ...

WASHINGTON, March 16 (Reuters) - Astronomers have spotted a planet orbiting a star in our neighborhood of the Milky Way galaxy that presents a unique hellscape - covered with a perpetual ocean of ...

(NewsNation) — Images of a pyramid-like shape on the surface of Mars are propelling theories that alien beings constructed the object, but one expert on the Red Planet has some disappointing news for ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a theoretical planet orbiting a redder star, which could cause microbes and plants on the planet's ...