This view from the wide-angle camera on NASA's Cassini spacecraft shows Saturn's northern hemisphere on 25 April 2016, as that part of the planet approaches its summer solstice in May 2017. The probe will complete its mission just after northern summer solstice, having observed long-term changes in the planet's winds, temperatures, clouds and chemistry. Cassini will soon begin a series of 20 orbits that fly high above and below Saturn's poles, plunging just past the outer edge of the main rings. Image credit: NASA/JPL-Caltech/Space Science Institute.