If you have enjoyed exploring Earth with Google Earth and the stars with Stellarium, another stunning program that you should see is the Worldwide Telescope. WorldWide Telescope (WWT) enables your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world. The images are taken from the Hubble Space Telescope, NASA’s Spitzer Space Telescope, the Chandra X-Ray Observatory Center, and other ground and space telescopes.
With the rich data provided by World Wide Telescope, mathematics teachers can use it as context for a lot of problems particularly on large numbers and trigonometry. Of course it is also a very good software for studying elementary astronomy.