NASA's plan to move the space shuttle Discovery out of itshangar in preparation for its final voyage has been delayed at least a daybecause of a water main break at the Kennedy Space Center in Florida.
Discoverywas slated to move from its maintenance hangar to the cavernous VehicleAssembly Building at the spaceport early Wednesday so engineers could attach theshuttle to its external tank and twin solid rocket boosters. But a 24-inch(61-cm) water pipe broke near the 52-story assembly building, cutting off thewater supply to the shuttle launch facility in Cape Canaveral, Fla.
The shuttle transfer was postponed to Thursday, to begin noearlier than 6:30 a.m. EDT (1030 GMT).
"The center is closed down ? only open to essentialpersonnel," Kennedy Space Center spokesman Allard Beutel told SPACE.com.
Discovery is being moved from the hangar, called the OrbiterProcessing Facility, in preparation for NASA's STS-133 shuttle flight to the InternationalSpace Station in November. The shuttle is slated to launch on its final missionNov. 1.This delay should not change Discovery's launch date, Beutel said.
"We have enough cushion right now so it won't affectthe target date, at least right now," he said.
Meanwhile, preparations for the mission are continuing atNASA's Johnson Space Center in Houston, where the six STS-133astronauts are rehearsing for their flight.
The mission to the InternationalSpace Station will deliver spare parts and external experiment platforms, aswell as a closet-like storage room and a humanoid robot assistant, named Robonaut2, for astronauts.
Discovery's final mission, the 133rd shuttle mission sincethe fleet began launching into space in 1981, will also be the 35th mission tothe space station.
NASA plans to fly only two more shuttle missions before the spaceshuttle fleet is retired in 2011 to make way for future missions to visitan asteroid by 2025. The possibility of a third shuttle flight, which would flyin summer of 2011, is being discussed in Congress.
- Gallery - Shuttle Discovery's Midnight Launch
- Graphic: Inside and Out ? the International Space Station
- Final Countdown: A Guide to NASA's Last Space Shuttle Missions
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Clara Moskowitz is a science and space writer who joined the Space.com team in 2008 and served as Assistant Managing Editor from 2011 to 2013. Clara has a bachelor's degree in astronomy and physics from Wesleyan University, and a graduate certificate in science writing from the University of California, Santa Cruz. She covers everything from astronomy to human spaceflight and once aced a NASTAR suborbital spaceflight training program for space missions. Clara is currently Associate Editor of Scientific American. To see her latest project is, follow Clara on Twitter.