2 were onboard
There were 2 astronauts on each Project Gemini mission.
2
there where nine atsronuts :)
There were two men in each Gemini module(The constellation Gemini is the twins)
i think but i am am not sure but i think it was 1-3 astronauts
The Gemini capsules were designed to hold 2 Astronauts, and each mission carried 2.
Each Gemini spacecraft launched 2 astronauts. 16 different astronauts flew a total of 10 Gemini flights. The last 4 Gemini flights (Gemini 9 through 12) were commanded by astronauts who had previously flown on an earlier Gemini flight.
two
Gemini refers to the constellation meaning twin, therefore two astronauts could be seated in the Gemini capsule
2
2.
Two. A command pilot (commander) and a pilot (technically a co-pilot -- a term which is taboo among astronauts).