Astronomers using Hubble and other observatories identified a galaxy called Candidate Dark Galaxy-2, or CDG-2, that appears to be dominated by dark matter. Most galaxies nearby are bright, but this one is so faint it is nearly invisible. The galaxy seems to hold only a handful of stars, which is far fewer than typical galaxies of similar size. Its dark matter content was inferred from how its few stars move and how it is held together. The discovery adds to a growing list of ultra-faint galaxies that challenge ideas about how galaxies form and how dark matter is distributed.

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.