SpaceX's Falcon 9 rocket early May 22

(Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 rocket early May 22, 2012 as it heads for space carrying the company's Dragon spacecraft from pad 40 at Cape Canaveral, Florida. The Dragon capsule is scheduled to dock with the International Space Station in a few days. (Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 rocket early May 22, 2

(Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 rocket early May 22, 2012 as it heads for space carrying the company's Dragon spacecraft from pad 40 at Cape Canaveral, Florida. The Dragon capsule is scheduled to dock with the International Space Station in a few days. (Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 rocket early May 22, 2

SpaceX's Falcon 9 rocket early May 22, 2012 as it heads for space carrying the company's Dragon spacecraft from pad 40 at Cape Canaveral, Florida. The Dragon capsule is scheduled to dock with the International Space Station in a few days. (Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 rocket early May 22, 2

SpaceX's Falcon 9 rocket early May 22, 2012 as it heads for space carrying the company's Dragon spacecraft from pad 40 at Cape Canaveral, Florida. The Dragon capsule is scheduled to dock with the International Space Station in a few days. (Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 rocket early May 22, 2

SpaceX's Falcon 9 rocket early May 22, 2012 as it heads for space carrying the company's Dragon spacecraft from pad 40 at Cape Canaveral, Florida. The Dragon capsule is scheduled to dock with the International Space Station in a few days. (Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX Rocket To Become The First Non-Governmental Vehicle To Reach Int'l Space Station

(Photo by Roberto Gonzalez/Getty Images)

SpaceX's Dragon spacecraft atop rocket Falcon 9 lifts off from Pad 40 of the Cape Canaveral Air Force Station in Titusville, Florida. The launch makes SpaceX the first commercial company to send a spacecraft to the International Space Station. (Photo by Roberto Gonzalez/Getty Images)

SpaceX Rocket To Become The First Non-Governmental Vehicle To Reach Int'l Space Station

(Photo by Roberto Gonzalez/Getty Images)

SpaceX's Dragon spacecraft atop rocket Falcon 9 lifts off from Pad 40 of the Cape Canaveral Air Force Station in Titusville, Florida. The launch makes SpaceX the first commercial company to send a spacecraft to the International Space Station. (Photo by Roberto Gonzalez/Getty Images)

SpaceX Rocket To Become The First Non-Governmental Vehicle To Reach Int'l Space Station

(Photo by Roberto Gonzalez/Getty Images)

SpaceX's Dragon spacecraft atop rocket Falcon 9 lifts off from Pad 40 of the Cape Canaveral Air Force Station in Titusville, Florida. The launch makes SpaceX the first commercial company to send a spacecraft to the International Space Station. (Photo by Roberto Gonzalez/Getty Images)

SpaceX Rocket To Become The First Non-Governmental Vehicle To Reach Int'l Space Station

(Photo by Roberto Gonzalez/Getty Images)

SpaceX's Dragon spacecraft atop rocket Falcon 9 lifts off from Pad 40 of the Cape Canaveral Air Force Station in Titusville, Florida. The launch makes SpaceX the first commercial company to send a spacecraft to the International Space Station. (Photo by Roberto Gonzalez/Getty Images)

SpaceX Rocket To Become The First Non-Governmental Vehicle To Reach Int'l Space Station

(Photo by Roberto Gonzalez/Getty Images)

SpaceX's Dragon spacecraft atop rocket Falcon 9 lifts off from Pad 40 of the Cape Canaveral Air Force Station in Titusville, Florida. The launch makes SpaceX the first commercial company to send a spacecraft to the International Space Station. (Photo by Roberto Gonzalez/Getty Images)

SpaceX's Falcon 9 rocket is readied for

(Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 rocket is readied for a second launch attempt on launch pad 40 at Cape Canaveral, Florida, on May 21, 2012. The Falcon will carry the company's Dragon capsule to the International Space Station with launch now planned for early May 22. (Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 spacecraft, with the D

(Photo credit: BRUCE WEAVER/AFP/GettyImages)

SpaceX's Falcon 9 spacecraft, with the Dragon reusable capsule, sits on the launch pad on May 18, 2012 in Cape Canaveral, Florida. (Photo credit: BRUCE WEAVER/AFP/GettyImages)