Assisted by Astronaut John Glenn, Astronaut Virgil Grissom enters the Mercury capsule, Liberty Bell 7, for the MR-4 mission on July 21, 1961. Boosted by the Mercury-Redstone vehicle, the MR-4 mission was the second manned suborbital flight.
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Details
Title: Mercury Project
Date Created: 1961-07-21
Rights: MSFC
Album: rlobrie1
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