Apollo 11 Commander Neil Armstrong prepares to put on his helmet with the assistance of a spacesuit technician during suiting operations in the Manned Spacecraft Operations Building (MSOB) prior to the astronauts' departure to Launch Pad 39A. The three astronauts, Edwin E. Aldrin Jr., Neil A Armstrong and Michael Collins, will then board the Saturn V launch vehicle, scheduled for a 9:32 a.m. EDT liftoff, for the first manned lunar landing mission. 1969-07-16 KSC-69PC-0377 NASA Kennedy Space Center NASA-KSC http://images.ksc.nasa.gov/ http://images.ksc.nasa.gov/photos/1969/thumb/KSC-69PC-0377.gif GIF 100 80 12069 http://images.ksc.nasa.gov/photos/1969/low/KSC-69PC-0377.gif GIF 299 240 102221 http://images.ksc.nasa.gov/photos/1969/medium/KSC-69PC-0377.jpg JPEG 959 768 133557 http://images.ksc.nasa.gov/photos/1969/high/KSC-69PC-0377.jpg JPEG 2940 2355 909222