O’Neill cylinders are often imagined as giant rotating megastructures built to house humanity in space. But this episode ...

So, you want to know about Stellaris megastructures? These gargantuan feats of engineering were first introduced in the first Stellaris DLC - Utopia - and range from habitats and gateways, to more ...

Add Yahoo as a preferred source to see more of our stories on Google. (cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically ...

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 ...