That has got to be the coolest job title on the planet.
Virgin Galactic, you will recall, is Virgin billionaire, Richard Branson's, space tourism outfit, whose spaceships are being designed by pioneering aviator, Burt Rutan, winner of the $10 million Ansari X-Prize.
What has Clark done to earn his out-of-this-world title? Sold no less that $25 million worth of rides into space at about $200,000 a pop. And what can these deep pocketed would-be astronauts expect from their investment? Check out the video below.