Space Shuttle Discovery Set for Last Trip to Launch Pad

NASA’s space shuttle is positioned to attach the fuel tank and boosters for its final mission.
Engineers haul shuttle Discovery into position to meet its fuel tank and boosters for the shuttle's final mission in Nov. 2010. (Image credit: collectSPACE/Robert Z. Pearlman)

Spaceshuttle Discovery is set to make one last trip to the launch pad late Monday (Sept.20) to gear up for its final mission as NASA moves closer to retiring its orbiterfleet for good.

The shuttleis slated to begin the hours-long launch pad trek at 8 p.m. EDT (0000 GMT)tonight at NASA's Kennedy Space Center in Cape Canaveral, Fla. Hundreds of NASAworkers and their families are expected to be on hand to watch the shuttle'smove.

"It's asmall way to give back to the people who have given so much to the spaceshuttle program over the years," NASA spokesman Allard Beutel toldSPACE.com. "It's also a way for people to show their families all theirhard work. This is where they've been spending all the hours of theirtime."

"A lotof these people have worked on the shuttle program for years but have never hadthe chance to take a picture in front of it," Beutel said.

Discovery isscheduled to launch Nov. 1 on an 11-day mission to the International Space Station that will mark the spacecraft'sfinal trip to space. The mission, STS-133, will be Discovery's 39th spaceflightand is expected to deliver a storage room to the International Space Stationalong with a humanoid robot assistant for the outpost's astronaut crew.

NASA willretire the three remaining shuttles in its fleet ? Discovery, Atlantis andEndeavour ? next year to make way for a new plan aimed at sending astronauts tovisit an asteroid by 2025. Discovery is the oldest of NASA's space shuttles.

Only two more shuttle missions are currently scheduled, includingDiscovery's November flight, before the reusable orbiter is retired. Theshuttle Endeavour is slated to fly the final shuttle mission in February 2011.

NASA willbroadcast Discovery's launch pad move live on NASA TV beginning at 8 p.m. ET. Click here for a linkto SPACE.com's NASA TV feed and shuttle mission updates.

Denise Chow
NBC News science writer

Denise Chow is a former Space.com staff writer who then worked as assistant managing editor at Live Science before moving to NBC News as a science reporter, where she focuses on general science and climate change. She spent two years with Space.com, writing about rocket launches and covering NASA's final three space shuttle missions, before joining the Live Science team in 2013. A Canadian transplant, Denise has a bachelor's degree from the University of Toronto, and a master's degree in journalism from New York University. At NBC News, Denise covers general science and climate change.