The Guided Tours are based on a variety of themes, such as planets, moons, galaxies, and other related topics. Most of the tours are narrated by astronomers, educators, and others in the field. The following screen shot is from the Earth@Night guided tour:
The next screen shot is a close-up from the Chandra Crab Nebula guided tour, which flies you into the center of this astonishing formation:
The WorldWide Telescope also allows you to explore planets interactively. By using your keyboard and mouse, you can zoom in, rotate, and pan the images of all the planets in our solar system. Here a screen shoot of Venus, which you can explore interactively:
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The system requirements for WorldWide Telescope require a PC running either Microsoft® XP SP2 (minimum) or Windows® Vista® (recommended). For more information, see the Frequently Asked Questions.