WorldWide Telescope
This is seriously cool. The internal stuff I have looked at rocks and it will be available to folks soon. Here is a blurb form the marketing folks:
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The WorldWide Telescope (WWT) is a rich visualization environment that functions as a virtual telescope, bringing together imagery from the best ground and space telescopes in the world for a seamless, guided exploration of the universe.
WorldWide Telescope, created with Microsoft's high-performance Visual Experience Engine™, enables seamless panning and zooming across the night sky blending terabytes of images, data, and stories from multiple sources over the Internet into a media-rich, immersive experience.
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They actually got this one right for a change, this is some cool shizznit...
http://www.worldwidetelescope.org/
