<P> Oceanus Procellarum ( / oʊ ˈsiːənəs ˌprɒsɪˈleɪrəm / ; Latin for `` Ocean of Storms '' ) is a vast lunar mare on the western edge of the near side of the Moon . It is the only one of the lunar maria to be called an `` Oceanus '' ( ocean ) , due to its size : Oceanus Procellarum is the largest of the maria , stretching more than 2,500 km ( 1,600 mi ) across its north - south axis and covering roughly 4,000,000 km ( 1,500,000 sq mi ) . </P>
where would you find the ocean of storms
the western edge of the near side of the Moon