The Dyson sphere is a hypothetical artificial structure proposed by physicist Freeman Dyson in 1960, which would cover a star with a structure and directly harness its energy. However, no matter how ...

Protecting planets from extraterrestrial invasion might sound like a job that only exists in science fiction. But NASA recently posted a "Help Wanted" ad for exactly this position, under the name ...

NASA has a job opening that sounds straight out of science-fiction. The "planetary protection officer" position will ensure that Earth is not contaminated by matter brought back from space, and that ...

A NASA scientist says her aim is to stop deadly alien viruses from reaching Earth and vice versa. Dr Moogega Cooper's job is to prevent such "contamination" being brought back home by astronauts and ...