Saturn’s moon Titan is so large it outsizes the planet Mercury, making it the second-biggest moon in the solar system after Jupiter’s Ganymede Space DailyOn Saturn’s moon Titan, molecules that chemistry says should never mix are mixing — NASA and Chalmers University researchers found that at minus 183 degrees Celsius, substances as incompatible as water and oil can dissolve into each other Space DailyAcross Titan’s equator, winds have built dunes around 100 metres high and hundreds of kilometres long — but the grains are water ice coated in hydrocarbons that fell out of the moon’s orange atmosphere Space Daily