http://en.wikipedia.org/wiki/Project_Gemini
Project Gemini was the second human spaceflight program of the United States of America. It operated between Projects Mercury and Apollo, with 10 manned flights occurring in 1965 and 1966. Its objective was to develop techniques for advanced space travel, notably those necessary for Project Apollo, whose objective was to land men on the Moon. Gemini missions involved the first American extravehicular activity and new orbital maneuvers included rendezvous and docking.
The "Gemini" designation comes from the fact that each spacecraft held two men, as "gemini" in Latin means "twins".
I am certain this is why my father's second wife was named Gemma - because I was actually on that flight in reality. I can "remember" Gemma pointing out through the front window of their house one time at night when I was staying with them that there was a man on the moon.
http://en.wikipedia.org/wiki/Gemini_12
Launch: November 11, 1966
Landing: November 15, 1966
Gemini 12 (officially Gemini XII) was a 1966 manned spaceflight in NASA's Gemini program. It was the 10th manned Gemini flight, the 18th manned American flight and the 26th spaceflight of all time (includes X-15 flights over 100 km).
Insignia
The patch's unique orange and black colors are a link to the flight's original scheduled date close to Halloween. The Roman numeral XII is located at the 12 o'clock position on the face of a clock, with the Gemini spacecraft pointing to it like the hour hand of a clock. This represents the position of Gemini 12 as the last flight of the Gemini program. With the Apollo project following this last flight of the Gemini program, the ultimate objective -- the moon -- is symbolized by the crescent on the left.
Trivia
A blunter symbol of the end of the Gemini program took place on the day of liftoff, as both astronauts wore signs on their backs. Lovell's read "THE," Aldrin's read "END."
