In a galaxy far, far away -- approximately 3,340 light years -- lies Kepler-47, a planetary system in which the planets, like the fictional planet Tatooine in Star Wars, orbit two stars. Astronomers just discovered a third planet circling the two suns, making Kepler-47 the only known two-star system with more than two planets. Above is an artist's rendition of the two suns and their three planets. (NASA/JPL-Caltech/T. Pyle)

On April 24, 1990, the NASA/ESA Hubble Space Telescope was launched. Its mission was to provide spectacular views of space for science and the public alike, which it has done now for 29 years and counting. For Hubble's 29^th anniversary image, the telescope photographed the elegant hourglass figure of the Southern Crab Nebula to mark the occasion. This binary star system is one of the many stellar objects that the telescope has helped reveal in stunning detail over the years. (NASA, ESA, and STScI)