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Space History Photo: John Glenn in the Mercury Procedures Trainer

space history, nasa, mercury
John Glenn runs through training exercises.
(Image: © NASA)

In this historical photo from the U.S. space agency, John H. Glenn, one of the Mercury Seven Astronauts, runs through a training exercise in the Mercury Procedures Trainer at the Space Task Group, Langley Field, Virginia. This Link-type spacecraft simulator allowed the astronaut the practice of both normal and emergency modes of systems operations.

Each weekday, SPACE.com looks back at the history of spaceflight through photos (archive).

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