The New Nation - Internet Edition

AFP, Cape Canaveral

The US shuttle Discovery was to return to Earth Saturday after a successful mission to deliver and open Japan's first space laboratory at the International Space Station. NASA gave the shuttle the green light to wrap up its 15-day journey after it determined that the loss of a small clip from its rudder speed break posed no risk during landing, which is scheduled for 11:15 am (1515 GMT). The V-shaped thermal barrier clip, measuring 6.5-by-2.5 centimeters (2.5 inches by one inch), is only needed during the shuttle's ascent, the US space agency said. "It's not an issue whatsoever," deputy shuttle program manager LeRoy Cain told reporters. NASA also determined that Discovery's heat shield was in "very good shape" and the shuttle was "safe for re-entry," Cain said. The agency has kept a close eye on the shuttle's protective thermal layer since a crack in Columbia's heat shield caused the orbiter to explode as it re-entered Earth's atmosphere in February 2003, killing its seven astronauts. Discovery commander Mark Kelly, speaking on NASA TV from the shuttle, admitted the seven-person crew had initial concerns when they saw an object floating past them but were reassured by news that it was a clip.