Scientists have found a nearby planet that appears to be teeming with life, and now Earth's most advanced computer programs revealed what it could look like. The planet, known by astronomers as K2-18b ...

In context: Radio waves from distant galaxies are too faint to provide meaningful data for potential space observations. However, a sufficiently advanced alien civilization could harness energy in ...

Researchers found seven stars in our galaxy that might host alien megastructures called Dyson spheres. But these stars' strange behavior could also be explained by other phenomena, like clouds of dust ...

Everyone loves a good alien invasion story, preferably one with city-sized ships and physics-defying tech. There's just one big problem with that. The Milky Way is estimated to contain 100 to 400 ...

"Although ETIs might be rare, there is only one way to really find out, and that is by searching for it." A new study argues that conditions necessary for intelligent extraterrestrial life may be far ...