Examination has also shown the surface to be relatively smooth; the few objects that seem to be impact craters appeared to have been filled in, perhaps by raining hydrocarbons or volcanoes.
Penelitian juga telah menunjukkan bahwa permukaan Titan relatif halus; beberapa objek yang tampaknya merupakan kawah tubrukan tampaknya telah diisi, kemungkinan oleh hujan hidrokarbon atau volkano.