1156 GMT (7:56 a.m. EDT)
GO FOR THE DEORBIT BURN! The six astronauts aboard space shuttle Discovery have received news from Mission Control that weather conditions are acceptable at Kennedy Space Center for landing this morning. The crew is "go" to perform the deorbit burn at 8:06:55 a.m. EDT to commit the shuttle for the trip back to Earth.
The upcoming 3-minute, 2-second retrograde burn using the twin orbital maneuvering system engines on the tail of Discovery will slow the shuttle's velocity by 302 feet per second, just enough to slip the craft out of orbit and begin the plunge into the atmosphere.
Discovery is headed to a landing at 9:14 a.m. EDT on Runway 33 at Kennedy Space Center to end the 12-day, 18-hour, 36-minute mission.