The Motive: Since the early 1980s, astronomers have postulated that a vast, sloshing sea of liquid ethane half a mile deep may cover the surface of Saturn's giant moon, Titan. (discovermagazine.com)
Cassini's radar peered through the moon's thick orange haze to reveal an Earthlike surface with seas, rivers and clouds filled with liquid ethane and methane. (sciencenews.org)
Titan's average surface temperature lies somewhere in between, so researchers expect to find lakes and seas of liquid ethane on the surface. (discovermagazine.com)