Apollo 17 in December 1972, with that mission racking up a record 22 hours and four minutes of spacesuited activities overall.  NASA's Artemis program: Everything you need to knowMoon dust could be a problem for future lunar explorersHow will NASA deal with the moon dust problem for Artemis lunar landings?So the new dust-spray tech could really come in handy. "Study members found that the liquid nitrogen spray was not too abrasive to the spacesuit, yet was still effective at removing dust