Lemaître (Moon)

Named after Georges Henri Joseph Édouard Lemaître - Belgian mathematician (1894-1966).

Lemaître is a lunar impact crater on the southern hemisphere on the far side. It lies to the south of the older crater Minkowski, and north of Crommelin. To the east-southeast lies the crater Eijkman. The outer rim remains well-defined, although it has become eroded and rounded by a history of minor impacts. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.