Astronomers using Hubble's ultraviolet camera have captured new images of the auroral lights at Saturn's north pole. The images show that when bursts of charged particles from the Sun reach Saturn, its long magnetotail, a comet-like trail of magnetic field, collapses and later reconfigures itself. That change is reflected in the shifting patterns of the aurora. Some light bursts moved more than three times faster than the planet's rotation. The team combined Hubble data with observations from NASA's Cassini spacecraft, which was in orbit around Saturn, to get a 360-degree view of the auroras at both poles. Cassini's imaging also showed that Saturn's auroral veils are red at the bottom and violet at the top.

In 1909 D. W. Griffith made a 14-minute film about a speculator who corners the wheat market and doubles the price of bread. A farmer sows his field while a 'Wheat King' gambles in the Chicago wheat pit; bakers raise the loaf from five cents to ten and the poor line up for bread. Griffith cut back and forth between the farm, the feast and the breadline, a technique called parallel editing, so audiences saw both ends of the economy at once. The film drew on Frank Norris's stories and on a real scheme: months earlier Chicago financier James Patten had cornered wheat, sent bread prices up and made about $5 million, roughly $185 million today.