A Nasa Earth Observatory image shows what the Moderate Resolution Imaging Spectroradiometer on Nasa’s Terra satellite captured in this natural-colour image. Thin plumes of beige dust blow off the Alaskan coast toward the south-southwest. Farther to the south, lines of clouds mimic the shape and direction of the dust plumes, and even cast shadows on them. The dust plumes and clouds were likely shaped by the same winds.