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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 ...

Red dwarfs make up the vast majority of stars in the galaxy. Such ubiquity means they host the majority of rocky exoplanets we've found so far—which in turn makes them interesting for astrobiological ...

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 ...

The Hubble Space Telescope has captured a striking image of an irregular dwarf galaxy. And while this galaxy might be faint and far away, it certainly takes the spotlight in this spectacular new image ...

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 ...

In the search for intelligent alien life, finding a Dyson sphere would be like hitting the jackpot. Theoretically, super-advanced alien societies could build these giant, ultra-high-tech ...