pure oxygen also circulated through the astronauts ’ pressure suit with the same effects ; he stayed cool and dry because the oxygen flow promoted evaporation of his sweat .
photo : associated press image 3 of 145 in this july 12 , 1969 , file photo , the spot on the moon where apollo 11 astronauts will aim for in their landing in the first attempt by man to land on the moon is pointed out by rocco petrone , director of launch operations at the space complex , cape kennedy , fla. less in this july 12 , 1969 , file photo , the spot on the moon where apollo 11 astronauts will aim for in their landing in the first attempt by man to land on the moon is pointed out by you ’d be a lying crazy person if you said it has n’t crossed your mind , and in the 1960s it was one of the most common questions posed to nasa ’s astronauts : how do you go to the bathroom in space ?
mcdonnell aircraft , the company who built the capsule , makes no mention of bathrooms of any kind in the nearly 500 page familiarization manual it sent to nasa .
the lunar module is seen in the background .
see what it took to put men on the moon ... photo : science & society picture librar sspl via getty images image 2 of 145 astronaut edwin e. aldrin jr. , lunar module pilot , stands on the lunar surface after the apollo 11 moon landing on july 20 , 1969 .
photo : science & society picture librar sspl via getty images image 1 of 145 caption close image 1 of 145 photos : the history of the apollo program it took thousands of men and women to make nasa 's apollo program work .
despite the high - tech capsule and clothing , there was one glaring oversight in the original mercury mission planning : there was no thought to the astronaut having to urinate during the flight .
nasa ’s first manned spaceflight program flew the mercury capsule , which was one of the most complex and intricate machines ever built when the program began manned flights in 1961 .
astronaut edwin e. aldrin jr. , lunar module pilot , stands on the lunar surface after the apollo 11 moon landing on july 20 , 1969 .