Stephen Hawking: Humans Should Ride a Beam of Light to Other Planets

Humanity should focus its efforts on exploring other worlds that we might inhabit, and to get there, Earthlings may need to ride on a beam of light, famed physicist Stephen Hawking says.The human imagination has led us to peer ever deeper into the universe with scientific tools, Hawking said.The answer is, no," Hawking said in his address.