Add Yahoo as a preferred source to see more of our stories on Google. Researchers found seven stars in our galaxy that might host alien megastructures called Dyson spheres. But these stars' strange ...

Scientists claim to have detected signs of a long-hypothesised alien power-generation technology in the Milky Way galaxy, hidden away in a trove of astronomical data. These hypothetical “Dyson spheres ...

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 ...

Scientists have detected a mysterious signal known as fast radio bursts coming from an ancient galaxy billions of light years away. Some experts have suggested that these fast radio bursts (FRBs), an ...

One of the most famous exploding stars ever recorded by humanity may have been an invader from another galaxy, according to a new analysis of its movements. What is more, alien stars like this might ...

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 ...