A new picture from NASA's Wide-field Infrared Survey Explorer, or WISE, telescope, shows the California Nebula, a star-forming cloud of dust and gas about a hundred light-years long. At the top of a red dust cloud to the upper left of the nebula lies Menkhib, a star with a surface temperature six times hotter than the sun's. Menkhib is a runaway star, one that was ejected from its home cluster and is now speeding through the nebula's dust and gas. The red cloud is a part of the nebula that's being heated by a shock wave in front of the fast-moving star. [Xinhua/NASA]