SECOND U.S. ASTRONAUT — Lt. Comdr. M. Scott Carpenter was rocketed into space at 8:45 a.m., EST, on May 24 to become the second U. S. astronaut.… As one of his experiments, Astronaut Carpenter released a small, 30-inch balloon…. The idea of the experiment was to determine whether a man undergoing the rigors of weightlessness could maintain his depth perception.
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