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Astronaut Bruce McCandless floats in space using a jetpack

McCandless Orbits in Jetpack

On Feb. 12, 1984, astronaut Bruce McCandless, ventured further away from the confines and safety of his ship than any previous astronaut had ever been. This space first was made possible by a nitrogen jet propelled backpack, previously known at NASA as the Manned Manuevering Unit or MMU.

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