Fresh Tiger Stripes on Saturn's Enceladus

Explanation: The tiger stripes on Saturn's moon Enceladus might be active. Even today, they may be spewing ice from the moon's icy interior into space, creating a cloud of fine ice particles over the moon's South Pole and creating Saturn's mysterious E-ring . Recent evidence for this has come from the robot Cassini spacecraft now orbiting Saturn . Cassini detected a marked increase in particle collisions during its July flyby only 270 kilometers over a South Polar region of Enceladus . Pictured above , a high resolution image of Enceladus is shown from the close flyby. The unusual surface features dubbed tiger stripes are visible on the left in false-color blue. Why Enceladus is active remains a mystery, as the neighboring moon Mimas , approximately the same size, appears quite dead .