How to Build a Dyson Sphere
In order for humanity to continue to progress at its current rate, we'll need to find better sources of energy to fuel our expansion. Earth-based sources will only get us so far — in order to expand into space, a huge energy source will be required, like that found in a star. Once solely the realm of science fiction, the Dyson sphere might one day be plausible, and Kurzgesagt looks at how it could be made.