Space – Then and Now

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It’s all amazing.

Image: Astronaut Bruce McCandless II was the first human to float untethered in space. NASA

On Feb. 7, 1984, during the Space Shuttle Challenger’s STS-41B mission, NASA Astronaut Bruce McCandless II made the first, untethered, free flight spacewalk in the Manned Maneuvering Unit.

Did you see this? Space X not only reuses rockets it can land them at the same time!