CAPE CANAVERAL, Fla. - Astronauts planned to conduct one more inspection of space shuttle Discovery on its final full day docked to the international space station — the first such examination this late in a mission.
Sensors at the end of a 50-foot-boom attached to Discovery's 50-foot robotic arm will scan for near-invisible holes and cracks in the shuttle's left wing caused by micrometeoroids, the dust-sized particles that make up the vast majority of debris circling Earth.