URANUS Here Hubble observations of Uranus's auroras in visible and ultraviolet light are superimposed on photos of the planetary disk taken by the Voyager 2 spacecraft during its 1986 flyby. Hubble snapped these pictures in November 2011, during a time of heightened solar activity when a torrent of solar wind particles set the planet alight with auroras... Credit: NASA, ESA, and L. Lamy (Observatory of Paris, CNRS, CNES)

