page_title: Mare Cognitum
hierarchical_section_title: Mare Cognitum
caption_attribution_description: English: en:Mare Cognitum is located in a basin or large crater which sits in the sencond ring of the Procellarum basin. The mare formations are of the Upper Imbrian epoch, while the surrounding basin material is of the Lower Imbrian epoch. You can clearly make out the mountain range Montes Riphaeus to the northwest of the mare. These mountains are a part of the rim crest of the buried crater or basin, containing the mare. Also, notice the lighter grey area to the upper right of the photo. This is Fra Mauro; the landing site of Apollo 14.
context_page_description: Mare Cognitum is a lunar mare located in a basin or large crater which sits in the second ring of Oceanus Procellarum. 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. Previously unnamed, the mare received its name in 1964 in reference to its selection as the target for the successful impact probe Ranger 7, the first American spacecraft to return closeup images of the Moon's surface.
context_section_description: Mare Cognitum /ˈkɒɡnɪtəm/ (Latin cognitum, the "Sea that has Become Known") is a lunar mare located in a basin or large crater which sits in the second ring of Oceanus Procellarum. 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. Previously unnamed, the mare received its name in 1964 in reference to its selection as the target for the successful impact probe Ranger 7, the first American spacecraft to return closeup images of the Moon's surface.
caption: Mare Cognitum. Fra Mauro is the gray region in the upper right.
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