Scientists have detected a mysterious signal known as fast radio bursts coming from an ancient galaxy billions of light years ...

To explore the galaxy and hunt for resources, intelligent aliens might need to turn their home stars into natural spaceships, a new paper suggests. A few known star systems might fit the bill. When ...

A researcher has proposed the idea that long-lived alien civilizations may have motivations to move elsewhere in the galaxy - and the best way to do that is by steering their binary star system. If ...

A mystery star located at the heart of the Milky Way could very well be from another galaxy, new research shows. The star is known as an S-star, and it is part of a swarm of stars found near ...

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 ...