Is it possible to build a Dyson sphere that isn't catastrophically unstable? New research says yes, but only in one type of ...

Sometimes the “whys” of history are lost, and that holds true to why Capt. John Cleves Symmes Jr. wholeheartedly believed the Earth was hollow.

In the realm of science fiction, Dyson spheres and ringworlds have been staples ... the mass of Jupiter—at twice the distance of Earth from the sun. Depending on its density, the shell would ...