May 13 - 9:10am EDT   Microsoft today kicked off the public beta of WorldWide Telescope, a downloadable app built for browsing the viewable universe. The software uses an Internet database to provide high-detail images of nebulas and other astronomical objects without requiring a large download; a unique approach stitches together images to create a seemingly unified view that uses terabytes' worth of data. The system is also unique in providing the views from specific telescopes, such as the Hubble Space Telescope, and allowing users to switch between viewing X-rays and observable light. [full story]