These clouds snapped by the Curiosity rover on Mars are much lower and thicker than the meteor-generated clouds the study looked at. (Credit: NASA/JPL-Caltech/Justin Cowart)

No matter what planet you’re on, physics remains the same. For clouds, that means they follow a peculiar law – they form only around a seed of some sort, usually a fleck of dust or salt. On Earth, with its thick atmosphere and strong air currents, it’s possible to find these lightweight particles throughout the atmospher