Mare Cognitum (the "sea that has become known") is a lunar mare located in a basin or large crater which sits in the sencond ring of the Procellarum basin. The basin material is of the Lower Imbrian[?]epoch, while the basaltic mare material is of the Upper Imbrian[?] epoch. To the northwest of the mare is the Montes Riphaeus mountain range, part of the rim of the buried crater or basin containing the mare.
Fra Mauro, the landing site of Apollo 14, is located near Mare Cognitum.
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... is spread out with 29.5% under the age of 18, 6.7% from 18 to 24, 33.6% from 25 to 44, 20.6% from 45 to 64, and 9.6% who are 65 years of age or older. The median age ...