+ Walk in space for $15 M ! +

Fewer than 450 people have traveled to space, and the club of spacewalkers is even more exclusive. Just 151 people have stepped outside the relative safety of their craft to greet the void with only a visor to separate life and death. 'Spacewalk is the ultimate experience that we've managed to invent as humans,' said Tom Jones, a former astronaut and spacewalker who is an adviser to Space Adventures. Being outside the craft when 'there's nothing between you and the ground below but empty space,' he said, is 'incomparable.