Marine Lt. Col. John Glenn, background, one of seven U.S. Astronauts, pose beside a Mercury Capsule procedure trainer with research engineer Charles Olasky at the control panel, Langley Field, Va. The controls simulate emergencies inside the capsule of the types which might be encountered during the first flight through space. The equipment is part of that used to train the astronauts at the NASA Research Center 11 Jan 1961
