See The Universe Using World Wide Telescope
Travel across the galaxies and see them as real using the microsofts World Wide Telescope. Microsoft is providing the world with unique access to Telescopes that collect information from space and allows you to travel millions of light years in a matter of seconds.
A web-based version of WorldWide Telescope is also now available for preview. This version enables seamless, guided explorations of the universe from within a web browser on PC and Intel Mac OS X by using the power of Microsoft Silverlight 2.0.
Here is the link to World Wide Telescope
