Live: Shuttle Inspection In Progress

During their first full day in space, Endeavour astronauts are scanning the shuttle's wing leading edges and nose cap for any damage that might have resulted from debris striking them during Friday night's from Kennedy Space Center.

The inspection, which began at 2:15 p.m. on the starboard wing, uses the shuttle's 50-foot robotic arm and a 50-foot boom extension to scan the reinforced carbon-carbon panels with laser sensors and cameras. The nose cap and left wing will follow.

Those process, which will take several hours, was instituted after the loss of Columbia in 2003. A piece of foam broke of the shuttle's external tank and punched a hole in an orbiter's left wing panel, causing the shuttle to break up on re-entry.

Pilot Eric Boe has primary responsibility for robotic arm operations. Mission specialists Shane Kimbrough and Don Pettit are helping to monitor the inspection.

Meanwhile, in Endeavour's mid-deck, spacewalkers Heidemarie Stefanyshyn-Piper and Steve Bowen are checking out their spacesuits. They are scheduled to perform the mission's first spacewalk on Tuesday.

On the International Space Station, Expedition 18 commander Mike Finke has been working to pressurize the Harmony module hatch that Endeavour is scheduled to dock with Sunday evening.

Endeavour is orbiting at an altitude of about 140 statute miles. Travelling at 17,500 mph, the shuttle is circling Earth every 90 minutes.

You can read the STS-126 crew's revised fligt plan for the day here.