NASA spots peculiar cloud hovering over Caspian Sea

NASA spotted a peculiarly-shaped cloud hovering over Caspian Sea, world's largest inland water body. Sharing image of cloud that stretched across 100 km at an altitude of around 1,500 m, NASA said it had "cartoon-like well-defined edges". According to researchers, it was small stratocumulus cloud formed when warm, dry air from land ran into cold, moist air over the sea.