The Skylab 4 mission set a duration record unbroken in NASA for how long?
over 10 years
over 15 years
over 20 years
over 25 years
Answer
The Skylab 4 mission was the longest NASA mission at the time of its completion. It lasted for 84 days and 1 hour, setting a duration record that remained unbroken for over 20 years. The mission was also notable for the first use of the Manned Maneuvering Unit (MMU), which allowed astronauts to perform extravehicular activities (EVAs) while outside the space station.
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