What is the introduction of American Gemini spacecraft?

Gemini series spacecraft is the second generation manned spacecraft in the United States. It has carried out 12 flight tests, including 2 unmanned flights and 10 manned flights. The Mercury spacecraft program started in 196 1 year, 1 1 month, and ended in 1966, 1 1 month, which lasted for five years. The Gemini project * * * costs $654.38+$283.4 million, of which the spacecraft costs $797.4 million, accounting for 62% of the total cost; $409.8 million for launch vehicles, accounting for 31.93% of the total cost; The supporting facilities amounted to $76.2 million (including $56 million for transforming global communication equipment), accounting for 5.94% of the total cost.

Gemini program is mainly to provide flight experience and prepare various technical conditions for Apollo manned moon landing program.