WEIGH TO GO.
The 65-year-old astrophysicist, who is paralysed by Lou Gehrig's disease, took a flight from the Kennedy Space Centre on a jet which simulates zero gravity.
He said: "As you can imagine, I'm very excited. "I have been wheelchair bound for four decades.
"The chance to float in zero G will be wonderful."
The jet performed eight parabolic dives then landed safely at Cape Canaveral.
Zero Gravity Corporation boss Peter H Diamandis said: "We had a wonderful time. It was incredible, far beyond our expectations."
Now Hawking plans to try a commercial space flight.