Space Shuttle Endeavour Poised to Launch Wednesday

At Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-127 crew members gather near space shuttle Endeavour's hatch to place the mission plaque before launch. Clockwise from left are pilot Doug Hurley, mission specialists Julie Payette, Christopher Cassidy, Dave Wolf, Tom Marshburn and Tim Kopra and commander Mark Polansky. Payette represents the Canadian Space Agency.