Microsoft has added Mars imagery to Bing Maps and to its WorldWide Telescope project. The imagery comes straight from NASA itself.

"Microsoft Research and NASA are providing an entirely new experience to users of the WorldWide Telescope, which will allow visitors to interact with and explore our solar system like never before," says Bing's Chris Pendleton. "Viewers can now take exclusive interactive tours of the Red Planet, hear directly from NASA scientists, and view and explore the most complete, highest-resolution coverage of Mars available."

"The beauty of this is that the Bing WorldWide Telescope Map App has been updated with the new imagery, as well," adds Pendleton. "This means users of Bing Maps can immediately enjoy the new imagery of the Red Planet from within their browser via our Silverlight site."

The Worldwide Telescope Mars experience can be downloaded here. On the Bing Maps Silverlight site, users can simply click the "Map Apps" button, select "WorldWide Telescope", and select "Mars" from the Collections list.