Scientists have found evidence of two mega solar systems - giant stars enveloped by what appear to be huge disks of planet-forming dust. The appearance of cloudy disks around stars are believed to represent current or future planetary systems. Our sun is surrounded by the Kuiper Belt, a disk containing dust, comets and other bodies. Astronomers say the latest findings through NASA's Spitzer Space Telescope were surprising because such massive stars are thought to be inhospitable to the formation of planets.