Wondering why the rollback of the Rotating Service Structure was delayed last night? Here’s your answer! NASA photographer Bill Ingalls captured part of the lightning storm that delayed the rollback until nearly midnight local time at Kennedy Space Center. It was originally slated to start at about 7 pm. But the late rollback went off without a hitch and preparations this morning are going well. Everyone keep your fingers crossed for no late afternoon Florida storms cropping up today. Liftoff time is scheduled for 3:47 p.m. EDT (1947 UTC) as Endeavour is about to set sail on her final voyage to space.