NASA Curiosity Rover captures rare photographs of clouds on Mars

Clouds drift across the sky above a Martian horizon in this photograph captured on July 17, 2017 by the Navcam on NASA's Curiosity Mars rover. Photo: NASA/JPL-Caltech/York University Last month, NASA's Curiosity Rover captured something (appropriately enough) curious in the Martian sky: clouds. Specifically, Curiosity snapped several sequences of "wispy, early-season clouds resembling Earth's ice-crystal cirrus clouds" that NASA is calling "the most clearly visible so far" since the Rover landed...