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Mare Crisium
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<p>Mare Crisium /ˈkrɪsiəm/ (Latin <i>crisium</i>, the "Sea of Crises") is a <a href="/facts/Lunar_mare/g606GphC">lunar mare</a> located in the <a href="/facts/Moon/zKHqEMPb">Moon</a>'s Crisium basin, just northeast of <a href="/facts/Mare_Tranquillitatis/hmhxz70j">Mare Tranquillitatis</a>. Mare Crisium is a basin of <a href="/facts/Nectarian/pJvdQISJ">Nectarian</a> age. It was formed by the flooding of basaltic lava that filled an ancient asteroid impact. </p>