They were all early US space programs that put man into space, and eventually onto the surface of the moon.
They also all launched capsules that rode atop rockets (rather than on the side like the shuttle) and returned to earth via parchute, landing in the water, unlike the shuttle which glides in on wings and lands like an ariplane.
nothin
Mercury can only hold one person but Gemini can carry two
Mercury and Gemini
Wally Schirra
Project Mercury and Project Gemini
Gemini. Mercury had one astronaut at a time, Gemini had two, and Apollo had three.
Gemini
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nothin
Mercury can only hold one person but Gemini can carry two
Mercury and Gemini
Apollo, Mercury, Gemini, Soyuz, etc.
Mercury and Gemini
The Apollo 11 was a bigger spacecraft ,then mercury or Gemini spacecraft.
Are you maybe referring to the Mercury and Gemini programs?
Mercury, Gemini, and Apollo.
Wally Schirra