Zero Gravity Corporation will take Stephen Hawking for a weightless voyage. The flight is aboard a modified 727 that lifts up to 30,000 ft before taking a series of short nose dives to produce the effect of Zero-G. The flight normally costs about $3,750.

Virgin Galactic has also offering Hawking a free ride in 2009, courtesy of Richard Branson. And courtesy a $200,000 free ticket.