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Mare Insularum
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<p>Mare Insularum /ɪnsʊˈlɛərəm/ (Latin <i>īnsulārum</i>, the "sea of islands") is a <a href="/facts/Lunar_mare/g606GphC">lunar mare</a> located in the Insularum basin just south of the western <a href="/facts/Mare_Imbrium/b4CQgRHt">Mare Imbrium</a>. The basin material is of the <a href="/facts/Lower_Imbrian/ysrvjxFW">Lower Imbrian</a> <a href="/facts/Epoch_(geology)/RhfBWrP2">epoch</a>, with the mare material of the <a href="/facts/Upper_Imbrian/ysrvjxFW">Upper Imbrian</a> epoch. The mare is bordered by the <a href="/facts/Impact_crater/nWntooh4">craters</a> <a href="/facts/Copernicus_(lunar_crater)/SH2l51TU">Copernicus</a> on the east, and <a href="/facts/Kepler_(lunar_crater)/vlUMsxQI">Kepler</a> on the west. <a href="/facts/Oceanus_Procellarum/jR3KrM7x">Oceanus Procellarum</a> joins the mare to the southwest. </p><p>Copernicus is one of the most noticeable craters on the Moon. The rays from both Kepler and Copernicus protrude into the mare. It is located near the crater <a href="/facts/Fra_Mauro_(crater)/59lwVYwV">Fra Mauro</a>, the site of the <a href="/facts/Apollo_14/SuokTzAu">Apollo 14</a> landing. <a href="/facts/Sinus_Aestuum/J7PLlf7z">Sinus Aestuum</a> forms a northeastern extension to the mare. </p><p>The name was suggested by lunar geologist <a href="/facts/Donald_Wilhelms/BXlpsah6">Don E. Wilhelms</a>. </p> <ul><li><a href="https://web.archive.org/web/20050411173011/http://lunar.arc.nasa.gov/science/atlas/mare/minsularum.htm">"Mare Insularum"</a>. Archived from <a href="https://lunar.arc.nasa.gov/science/atlas/mare/minsularum.htm">the original</a> on April 11, 2005. Retrieved April 14, 2005.</li></ul>