KNOWLEDGE CHECK

What was the primary purpose of the U.S. Gemini Program?
  1. To gather necessary engineering data before attempting a manned landing on the Moon’s surface.
  2. To study rest and sleep periods for astronauts on longer manned missions.
  3. To conduct medical experiments on the effects of spaceflight on the human body.
  4. To study the effects of microgravity, launch and reentry, and gravity transition periods on the human body.

Knowledge Check
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