Dyson spheres, the hypothetical mega-structures that advanced alien civilizations might use to enclose a star and harness its energy, suffer from a fatal flaw: They are catastrophically unstable ...

"The next generation of similar probes may not be available for a long time, making it unlikely that a large-scale Dyson sphere search program like Project Hephaistos will be conducted again in ...

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.