FILE PHOTO: CEO of ZERO-G Peter Diamandis (L) and crew with Professor Stephen Hawking, the world renowned physicist and expert on gravity on a lift truck after his flight at Kennedy Space Center in Cape Canaveral, Florida
FILE PHOTO: CEO of ZERO-G Peter Diamandis (L) and British physicist Stephen Hawking stand on lift truck after his flight at Kennedy Space Center in Cape Canaveral, Florida April 26, 2007. REUTERS/Charles W Luzier/File photo