PERSON@1 was among the first to hypothesize that ORGANIZATION@1 's moon Titan might possess oceans of liquid compounds on its surface and that LOCATION@1 's moon LOCATION@2 might possess subsurface oceans of water .

PERSON@1 was among the first to guess that Titan and LOCATION@1 's moon LOCATION@2 might have oceans or lakes , which means that life could be there .
