Home This image from a navigation camera aboard NASA’s Perseverance rover shows a gust of wind sweeping dust across the Martian plain beyond the rover’s tracks on June 18th, 2021 (the 117th sol, or Martian day, of the mission). The dust cloud in this photo was estimated to be 1.5 square miles (4 square kilometers) in size; it was the first such Martian wind-lifted dust cloud of this scale ever captured in image. (NASA/JPL-Caltech/SSI) This image from a navigation camera aboard NASA’s Perseverance rover shows a gust of wind sweeping dust across the Martian plain beyond the rover’s tracks on June 18th, 2021 (the 117th sol, or Martian day, of the mission). The dust cloud in this photo was estimated to be 1.5 square miles (4 square kilometers) in size; it was the first such Martian wind-lifted dust cloud of this scale ever captured in image. (NASA/JPL-Caltech/SSI)