Image: Shuttle rollover
The shuttle Discovery is ushered into the Vehicle Assembly Building at NASA's Kennedy Space Center on Thursday, after being rolled over from its spot within Orbiter Processing Facility 3.
By contributor
updated 9/9/2010 1:12:29 PM ET 2010-09-09T17:12:29

The space shuttle Discovery rolled out from its hangar for the last time early Thursday at NASA's Kennedy Space Center in Florida, making the first leg of its final mission into space.

The winged orbiter, the oldest of NASA's space shuttle fleet, emerged from its maintenance hangar at 6:30 a.m. DT on its way to the nearby Vehicle Assembly Building. A water main break at the Florida spaceport on Wednesday forced NASA to delay the shuttle move by one day.

Once inside the cavernous 52-story building, Discovery will be attached to the twin solid rocket boosters and external fuel tank that will help launch it to the International Space Station on Nov. 1.

Discovery's final flight ahead
Discovery's upcoming STS-133 mission will mark the shuttle's 39th flight to space and NASA's 133rd shuttle flight since the fleet began space launches in 1981. It is currently scheduled as NASA's second-to-last space shuttle mission before the fleet retires next year.

The shuttle Endeavour's STS-134 mission in late February 2011 is scheduled to be the final flight, though an extra mission on the orbiter Atlantis is under consideration. NASA is retiring its shuttle fleet to make way for a new plan to send astronauts to visit an asteroid by 2025.

Discovery's final spaceflight will deliver a storage room for the International Space Station and a humanoid robot assistant for the outpost's astronaut crew. But first, the shuttle had to leave its hangar to meet its fuel tank and rocket boosters.

Shuttle rollover history
Thursday's quarter-mile trip between its maintenance hangar and Vehicle Assembly Building was the 41st rollover in 26 years for Discovery, also known by its orbiter designation OV-103.

Discovery has more rollovers than actual space missions because the shuttle had to repeat the trip on two occasions: once for its maiden flight, STS-41D, in 1984, and again in 1991 before the STS-39 mission. In each case, the re-rollover became necessary because Discovery needed repairs before it could fly.

Thursday's journey was made atop the same 36-wheeled transport trailer that has moved Discovery and all of NASAs orbiters before each mission.

This latest rollover was originally planned for Wednesday morning but was delayed a day due to a water main break that forced NASA to close the space center to all but essential personnel. The burst 24-inch pipe, which was located nearby in the VAB, was promptly addressed, allowing center operations to resume and the rollover to proceed this morning.

The trip between a shuttle hangar and the Vehicle Assembly Building typically takes about a half-hour to complete, but NASA parked Discovery outside its hangar for several hours to let employees who worked on the shuttle pose with spacecraft for one last set of photos.

Once Discovery is mated to its boosters and fuel tank, an hours-long procedure assisted by a crane that is expected to be completed Friday morning, Discovery will embark on a different type of roll.

The completely assembled shuttle stack will ride a massive Apollo-era crawler transporter on the 3.4-mile (5.4-kilometer) trip to Launch Pad 39A. At the pad, Discovery will be readied for its November launch and loaded with its payload.

The launch pad rollout for Discovery is scheduled to begin late Sept. 20.

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Photos: Month in Space: January 2014

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  2. A balloon's view

    Cameras captured the Grandville High School RoboDawgs' balloon floating through Earth's upper atmosphere during its ascent on Dec. 28, 2013. The Grandville RoboDawgs’ first winter balloon launch reached an estimated altitude of 130,000 feet, or about 25 miles, according to coaches Mike Evele and Doug Hepfer. It skyrocketed past the team’s previous 100,000-feet record set in June. The RoboDawgs started with just one robotics team in 1998, but they've grown to support more than 30 teams at public schools in Grandville, Mich. (Kyle Moroney / AP) Back to slideshow navigation
  3. Spacemen at work

    Russian cosmonauts Oleg Kotov, right, and Sergey Ryazanskiy perform maintenance on the International Space Station on Jan. 27. During the six-hour, eight-minute spacewalk, Kotov and Ryazanskiy completed the installation of a pair of high-fidelity cameras that experienced connectivity issues during a Dec. 27 spacewalk. The cosmonauts also retrieved scientific gear outside the station's Russian segment. (NASA) Back to slideshow navigation
  4. Special delivery

    The International Space Station's Canadian-built robotic arm moves toward Orbital Sciences Corp.'s Cygnus autonomous cargo craft as it approaches the station for a Jan. 12 delivery. The mountains below are the southwestern Alps. (NASA) Back to slideshow navigation
  5. Accidental art

    A piece of art? A time-lapse photo? A flickering light show? At first glance, this image looks nothing like the images we're used to seeing from the Hubble Space Telescope. But it's a genuine Hubble frame that was released on Jan. 27. Hubble's team suspects that the telescope's Fine Guidance System locked onto a bad guide star, potentially a double star or binary. This caused an error in the tracking system, resulting in a remarkable picture of brightly colored stellar streaks. The prominent red streaks are from stars in the globular cluster NGC 288. (NASA / ESA) Back to slideshow navigation
  6. Supersonic test flight

    A camera looking back over Virgin Galactic's SpaceShipTwo's fuselage shows the rocket burn with a Mojave Desert vista in the background during a test flight of the rocket plane on Jan. 10. Cameras were mounted on the exterior of SpaceShipTwo as well as its carrier airplane, WhiteKnightTwo, to monitor the rocket engine's performance. The test was aimed at setting the stage for honest-to-goodness flights into outer space later this year, and eventual commercial space tours.

    More about SpaceShipTwo on PhotoBlog (Virgin Galactic) Back to slideshow navigation
  7. Red lagoon

    The VLT Survey Telescope at the European Southern Observatory's Paranal Observatory in Chile captured this richly detailed new image of the Lagoon Nebula, released on Jan. 22. This giant cloud of gas and dust is creating intensely bright young stars, and is home to young stellar clusters. This image is a tiny part of just one of 11 public surveys of the sky now in progress using ESO telescopes. (ESO/VPHAS team) Back to slideshow navigation
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  10. Cygnus takes flight

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  12. Frosty halo

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    Slideshow: The Year in Space (Brian Peterson / The Bismarck Tribune via AP) Back to slideshow navigation
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