The surface of Titan – the largest moon of Saturn – dissolves in a similar process that creates sinkholes on our planet, says a team of scientists led by Dr Thomas Cornet of the European Space Astronomy Center. Close-up radar image of Ligeia Mare, the second largest known body of liquid hydrocarbons on Titan. Image credit: NASA / ESA / T. Cornet. Titan has vast lakes of methane and ethane on its surface, but what makes the depressions they...
