Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically feasible, according to a new analysis – satisfying both our sci-fi fancies and our innate yearning ...

A rendering of a potential Dyson sphere, named after Freeman A. Dyson. As proposed by the physicist and astromomer decades ago, they would collect solar energy on a solar system wide scale for highly ...

This programme unveils the engineering secrets of six iconic megastructures that went on to spark a technological revolution, ultimately changing warfare forever. The Nazis built some of the biggest ...