Could Dyson Spheres be the key to locating alien life? Daniel Hooper thinks so.
“Recently, University of Chicago physicist Daniel Hooper offered a new idea for searching for high-tech alien artifacts. He notes that the universe is expanding, and galaxies are growing ever farther apart. So forward-thinking alien societies might want to grab stars from nearby galaxies while they can and park them in their cosmic neighborhoods as a hedge against future energy scarcity. This is akin to storing gasoline if you’re worried about a developing shortage. If collections of corralled stars do exist, they’d be easy to spot in the course of mainstream astronomy research.”
Why alien ‘megastructures’ may hold key to making contact with extraterrestrials