S61-03941 (26 April 1961) --- A mock-up of the Mercury space capsule is held suspended above the water aboard the ship that is taking astronauts Grissom and Glenn to their emergency water egress training. Photo credit: NASA
S61-03941 (26 April 1961) --- A mock-up of the Mercury space capsule is held suspended above the water aboard the ship that is taking astronauts Grissom and Glenn to their emergency water egress training. Photo credit: NASA