Images from the Thermal Emission Imaging System (THEMIS) aboard NASA's Mars Odyssey orbiter have revealed seven possible cave entrances on the flanks of the volcano Arsia Mons.
Citra dari Thermal Emission Imaging System (THEMIS) di wahana Mars Odyssey telah menunjukkan tujuh pintu masuk gua di belakang gunung berapi Arsia Mons.