Stephen Hawking used his fame to warn humanity about its potential — and rapidly approaching — end. He provided a possible solution, but just how viable is it?

Space technologies are experiencing a real revolution, with a transition from government exploration to an increasing participation of the private sector. Companies like SpaceX, Blue Origin, and ...

Many are passionate about colonizing outer space. They argue that it can be "Plan B" to rescue earth, or a solution to depleting resources and human overpopulation, or a way to move polluting ...