A couple of popular science experts have made the same point to prove that the Flat Earth theory is a bunch of malarkey. It's ...

An astronaut on the International Space Station captured mysterious blue spheres in the sky last year. NASA’s Earth Observatory shared the photo last year, as well, shortly after it was taken.

The search for alien life takes many forms, from identifying Earth-like planets to scanning for extraterrestrial signals.

A cosmologist suggests we should look for exploration, along with energy signatures, to try and find aliens. Dyson spheres of some kind may be built to harvest energy from dark matter in black holes.