Oceanus, an orbiter to investigate Titan's potential habitability.[18] Dragonfly, a rotorcraft that would fly over the landscape and oceans of Titan to study prebiotic chemistry.[10][19] Enceladus Life Finder (ELF), an astrobiology orbiter to Enceladus.[20][21][22] Enceladus Life Signatures and Habitability (ELSAH)[7][23]