- Apollo 17
- 110.4 hour(s):minute(s):second(s)
- United Kingdom ()
The crew of Apollo 17 collected a record 110.4 kg (243.4 lb) of rock and soil during their three EVAs (EVA = extra-vehicular activity) of 22 hr 5 min. They were Capt. Eugene Cernan and Dr Harrison "Jack" Schmitt (b. 3 Jul 1935), who became the 12th man on the Moon. The crew were on the lunar surface for 74 hr 59 min 40 sec during this longest of lunar missions, which took 12 days 13 hr 51 min 59 sec on 7–19 December 1972.