Vasco da Gama (Moon)

Portuguese navigator, explorer (c. 1460-1524).

'Vasco da Gama is a lunar impact crater that is located near the western limb. It is named for the Portuguese explorer Vasco da Gama. It lies to the south of the walled plain Einstein, due south of Dalton. Attached to the southwestern rim is the somewhat smaller crater Bohr. (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.