Banting is a small, bowl-shaped lunar impact crater located near the middle of the Mare Serenitatis on the Earth's moon. Originally named Linné E, in 1973 the crater was renamed for Sir Frederick Banting in honour of his outstanding medical contributions – the most famous being his discovery of insulin. (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.