The director, who is behind classics including 'E.T.' and 'Close Encounters Of Third Kind', made the extraordinary claim as he shared: "I don't believe we're alone in the universe," reports Mirror.co.uk.
Uranus, a giant, icy planet about four times the diameter of Earth, is made up almost entirely of hydrogen and helium.
Myanmar's Miss Universe contestant, Thuzar Wint Lwin, used the pageant on Sunday to urge the world to speak out against the military junta, whose security forces have killed hundreds of opponents since it seized power in a Feb. 1 coup.
Miss Mexico was crowned Miss Universe on Sunday in Florida, after fellow contestant Miss Myanmar used her stage time to draw attention to the bloody military coup in her country.
Astronomers have observed a vast array of dead galaxies scattered through the universe – but have been unable to say exactly why it happens.