Space Travel

A:

The Mercury missions were America's first manned spaceflight missions. They took place from 1961 to 1963. The goals of the program were to put an astronaut in orbit and achieve spaceflight lasting longer than 24 hours safely. Alan Shepard, Gus Grissom, John Glenn, Scott Carpenter, Wally Schirra, Gordon Cooper and Deke Slayton were the seven astronauts chosen for the program, but Deke Slayton was grounded for medical reasons.

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