Stephen Hawking: alien life is out there, scientist warns
Stephen Hawking has suggested that aliens almost certainly exist but has warned humanity not to try to contact them.
http://www.telegraph.co.uk/science/s...ist-warns.html
Stephen Hawking has suggested that aliens almost certainly exist but has warned humanity not to try to contact them.
http://www.telegraph.co.uk/science/s...ist-warns.html