July 11, 1979 marked Skylab’s uncontrolled reentry after six years in orbit, with debris falling near Esperance in southwestern Australia and no injuries reported.
77-ton Skylab lacked engines for orbital corrections, and a peak in solar activity expanded the upper atmosphere, increasing drag and accelerating its descent beyond NASA’s forecasts.
28,000 km/h reentry speeds made the impact zone hard to predict, while Space Shuttle delays killed plans to boost the station into a safer orbit.
30 tons of debris are estimated to have survived reentry, and Australia later imposed a symbolic fine on NASA over the fallen space junk.
Skylab’s crash pushed space agencies to prioritize controlled reentries for large spacecraft, shaping end-of-life planning for stations including the ISS.