Watch how dramatically the sky changes across planets and moons in our solar system. From pitch-black horizons to glowing ...

Scientists may have detected one of the most intriguing signs of possible alien life yet — on a distant ocean world 124 light ...

Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

The internet did a double-take after NASA Astronaut Don Pettit shared a photo from the International Space Station that looked, at first glance, like something from a sci-fi movie. The purple, ...

(RNS) — Starseeds say they’re not from this planet. Online, they’re sharing mythologies and rituals that, for some, are ...

A strange, tentacled object that went viral online was revealed to be a space-grown purple potato. Astronaut Don Pettit ...

Astronomers have reportedly narrowed the search for extraterrestrial life to a focused list of 45 rocky exoplanets. Out of ...

Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond ...

The spud's alien-like root growth has prompted some conspiracy theories.

The planet's unique combination of a magma ocean and a sulfur-laden atmosphere puts it in a class by itself. Read more at ...

A former NASA developer has analyzed 1950 photographic plates showing nine unexplained objects in Earth's orbit, years before ...

The much-anticipated sci-fi film Project Hail Mary is out in theaters today. In it, light-eating alien microbes sap the sun’s ...