Maraldi (Moon)

Named after Giovanni Domenico Maraldi - Italian-born French astronomer, geodesist (1709-1788) and Giacomo Filippo Maraldi - Italian-born French astronomer (1665-1729).

Maraldi Crater is an impact crater in the Argyre quadrangle on Mars at 62.2°S and 32.0°W and is 124.0 km in diameter. (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.