ADVANCE FOR USE TUESDAY, JULY 5, 2011 AND THEREAFTER - FILE - In this Jan. 27, 1986 file picture, the crew for the space shuttle Challenger leaves their quarters for the launch pad at Kennedy Space Center in Cape Canaveral, Fla. From foreground are commander Francis Scobee, Mission Spl. Judith Resnik, Mission Spl. Ronald McNair, Payload Spl. Gregory Jarvis, Mission Spl. Ellison Onizuka, teacher Christa McAuliffe and pilot Michael Smith. (AP Photo/Steve Helber)