PILOT MICHAEL COLLINS, practicing in weightless conditions, is entwined in his umbilical cord as he rehearses his scheduled walk in space during preparations for the three-day Gemini 10 flight, which would set a world altitude record of 474 miles. Command pilot John Young watches from the hatch of a spacecraft replica during the weightless session aboard a KC135 plane at the Kennedy Space Center in Florida.

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July 17, 1966: Astronauts prepare for afternoon launch

• By ncs-import
• October 23, 2015