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Gemini spacecraft

The Gemini spacecraft was a two-person Earth-orbital vehicle developed to demonstrate the long-duration flight, extravehicular activity, maneuvering, rendezvous, and docking techniques required for Apollo. Twelve numbered flight spacecraft flew from the uncrewed Gemini 1 structural test in 1964 through Gemini 12 in 1966; spacecraft 2 was later modified as Gemini B and became the first U.S. human-spaceflight capsule to fly twice.

Gemini spacecraft
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Identity

Aliases
Project Gemini spacecraftGemini capsule
Family Name
Gemini
Full Name
Gemini spacecraft
Roles
crewed_spacecraft
Status
retired
Type
spacecraft

Details

Description
The Gemini spacecraft was a two-person Earth-orbital vehicle developed to demonstrate the long-duration flight, extravehicular activity, maneuvering, rendezvous, and docking techniques required for Apollo. Twelve numbered flight spacecraft flew from the uncrewed Gemini 1 structural test in 1964 through Gemini 12 in 1966; spacecraft 2 was later modified as Gemini B and became the first U.S. human-spaceflight capsule to fly twice.
Dimensions
Diameter M
3.05
Height M
5.8
First Flight Year
1,964
Last Flight Year
1,966
Manufacturer
Operator
Propulsion Configurations
  • Entries
    • Nested value
    Name
    Gemini OAMS orbital maneuvering installation
    Notes
    One named Orbit Attitude and Maneuvering System for the Gemini spacecraft family. Count one denotes the integrated OAMS boundary, not one thruster; the separate Gemini reentry control system and retrograde rocket system remain unmodeled.
Spacecraft Specs
Launch Mass Kg
3,175
Reusability
partially_reusable

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Assets & Meta

Creation Time
July 13, 2026 at 09:46:04 UTC
Updated Time
August 25, 2026 at 18:15:55 UTC

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Gemini spacecraft Project Gemini spacecraft Gemini capsule
Gemini spacecraft - AeroVia