At its poles, a terrible storm rages, a perfect hexagon twenty thousand miles ... radial spikes and twisting lines like the aurora, above Saturn's rings. Elsewhere, countless iceberg-sized clumps ...

in the entire universe. The six-sided structure, nicknamed "the hexagon," is about 20,000 miles in diameter and extends about 60 miles down into Saturn's atmosphere. Scientists have figured out ...

One of the sights that surprised scientists most was the sharp edges of Saturn's hexagon and its central vortex. Saturn's hexagon is a giant cloud system on Saturn's north pole, and it contains a ...

An curved arrow pointing right. At just 240,000 miles from Saturn's north pole, NASA's Cassini spacecraft snapped some stunning photos. These are the first images of the spacecraft's new mission ...