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.

This sphere would enclose ... amounts of solar energy. Dyson calculated that a shell made from a planet with the mass of Jupiter could completely enclose the sun at roughly the orbit of Earth.

The back of the Ringworld is the mask of a planet ... Orbiting the sun would give it seasons! And thousands of such objects in solar orbit would comprise… a Dyson sphere. I put the alien ...