Spaceflight glossary

Plain-language definitions for the positions, hardware, trajectories, mission phases, and scientific terms used throughout AstronautAtlas. Crew-position entries also open the people and missions recorded under that role.

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Glossary terms

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Browse 5 terminology families covering 103 definitions and 13 archived crew positions.

Common spaceflight terms

Start with concepts that appear throughout the mission, vehicle, event, and astronaut archives.

Explore the complete glossary

Browse five broad terminology families when you are learning by subject.