WorldWide Telescope 2.0

There are a few niggling bugs--zooming with the mouse wheel is inaccurate, canceling the download of a guided tour crashes the program, and the help content is hidden underneath the Explore drop-down menu. However, the software boasts a hoard of amazing telescope imagery to be explored as well as very cool features that let you view, save, and manage that imagery in many different ways. WorldWide Telescope appears to be an invaluable tool for hobbyists, astronomers, students, educators, or anyone curious about the universe.
WorldWide Telescope (WWT) is a Web 2.0 visualization software environment that enables your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world for a seamless exploration of the universe.