I’m enjoying the conversation about Project Hephaistos engendered by the article on Dyson spheres. In particular, Al Jackson and Alex Tolley have been kicking around the notion of Dyson sphere ...

When people hear “Dyson sphere,” their first thought is probably a heavy-duty vacuum. They certainly don’t think of a megastructure surrounding and harnessing a star’s energy with the purpose of ...

In the more than 60 years in which scientists have engaged in the Search for Extraterrestrial Intelligence (SETI), several potential examples of technological activity ("technosignatures") have been ...

Recently, according to Live Science, the results of two scientific studies have been released that could, if verified, prove the existence of advanced alien civilizations elsewhere in the universe ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. What would be the ...

The Dyson Sphere concept is a staple of science fiction, from Star Trek to the novels of Larry Niven, and it sounds like a dream come true: a way to harvest almost all of the immense energy output of ...

Is it possible to build a Dyson sphere that isn't catastrophically unstable? New research says yes, but only in one type of star system. When you purchase through links on our site, we may earn an ...

In 1960, physicist Freeman Dyson put forth a paper in Science that changed the way we talked about alien civilizations. In it, Dyson conjectured that a sufficiently advanced civilization would harness ...

In 1960, visionary physicist Freeman Dyson proposed that an advanced alien civilization would someday quit fooling around with kindergarten-level stuff like wind turbines and nuclear reactors and ...