The final Skylab mission lasted 84 days and broke all previous records for mission duration. It also marked the first time humans were in space over the New Year holiday. Gibson made the first in-space recording of the birth of solar flare on the Sun. The mission revealed the work-load limit newly-arrived crews could handle at the beginning of a long mission, and adjustments made to the schedule during flight reduced crew stress and resulted in more work being accomplished overall than originally planned. These lessons are still used today on the International Space Station. The crew completed 6,051 hours of science on the Skylab.