Night Launch Cleared for Shuttle on Dec. 7th

CAPE CANAVERAL, Florida (AP) -- Preparations are on schedule for NASA's first nighttime space shuttle launch in four years as the space agency readies Discovery for a mission to the international space station, managers said Wednesday.

NASA plans to launch Discovery at 9:35 p.m. EST on December 7 for the third shuttle flight of the year and the fourth since the Columbia disaster killed seven astronauts in 2003.

The agency required the three launches after the Columbia accident to be in daylight so clear images could be taken of the shuttle's external fuel tank in case foam falls off. Foam breaking off the tank and striking Columbia's wing at liftoff caused the damage that led to the disaster.

"There were really no dissenting opinions on the night launch," said Bill Gerstenmaier, NASA's associate administrator.

The space agency needs to start launching shuttles at night to take advantage of more launch opportunities and finish space station construction by 2010, when the shuttle program ends.