Saturn’s moon Titan has coastlines matching ones on Earth that have been carved by waves, hinting that Titan’s hydrocarbon seas and lakes also has them
Craggy coastlines appear to have been carved out by waves around the methane seas and lakes of Saturn ’s largest moon, Titan – and a NASA mission launching in 2028 could give us a closer look., in the form of lakes and oceans made up of hydrocarbons like liquid methane, ethane and other organic molecules.
Palermo and her team looked at the coasts around Titan’s largest seas and lakes, like the Kraken Mare and Ligeia Mare, and compared them with coastlines on Earth whose origin we understand, such as Lake Rotoehu in New Zealand, which was initially made through flooding and later eroded from waves. They then created different simulations of Titan’s oceans, in which coastal erosion came from waves or just from dissolving at the edges.
Ligeia Mare on Saturn’s moon Titan, as seen by NASA’s Cassini spacecraft, has varying edges that may have been carved by wavesThey found that the images of Titan’s coastline were best represented by the simulation with waves, and bore a resemblance to wave-eroded coastlines on Earth.at Imperial College London.
Studying Titan’s coastline might also help us investigate how the first coasts on Earth formed, says Palermo. “Titan is a unique laboratory for coastal processes because it is untouched by people and plants. It’s really a place where we can investigate the coast as a physical process alone.”
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