Smoluchowski (Moon)

Named after Marian Smoluchowski - Polish physicist (1872-1917).

Smoluchowski is a lunar impact crater on the far side. It lies in the part of the lunar surface that is sometimes brought into view of the Earth during periods of favorable libration and illumination from sunlight, but at such times little detail can be seen as the crater is observed from the edge. Smoluchowski lies across the northern rim of the larger walled plain Poczobutt. Nearly attached to the north-northeastern outer rim is the smaller crater Paneth. (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.