The World Wide Telescope

Competition is a good thing, especially when it's between the likes of Google and Microsoft. First, Google produces its maps application, which combines geographical surveys, cartography, and satellite data to produce a cohesive experience of the world.

Not to be outdone, Microsoft decides to look beyond. Tying together feeds from all the world's most powerful telescopes, they have created a map of the universe, one that people can navigate through in three dimensions.

See the presentation introducing the service: