Renowned physicist and author Stephen Hawking has Lou Gehrig's disease, has been imprisoned by a paralyzed body for many years. But for a few seconds Thursday, he floated free of gravity's pull. Hawking was unrestricted by his paralyzed muscles and his wheelchair on a zero-gravity flight in Florida.
Hawking, 65, took eight trips along with other passengers, in which a jet climbs and then dips steeply, allowing for a lack of gravity for more than 20 seconds at a time.
"I have been wheelchair-bound for almost four decades," Hawking said before the flight, "and the chance to float free in zero-G will be wonderful."