Desktop Earth is a wallpaper generator. It will generate a high-resolution, accurate representation of the Earth. The imagery is based on NASA’s Blue Marble Next and Earth’s City Lights.

Desktop Earth will generate a high-resolution (the imagery is calculated from high-resolution 2560×1280 textures!!) representation of the Earth combined with city lights data which will be used to generate the Wallpaper. The image also changes automatically to represent snow and foilage changes across the seasons.

Desktop Earth comes in two versions:

• Downloadable: This is for Windows only. Desktop Earth will sit in your systray, run whenever you are logged on, and continuously update your wallpaper with an accurate representation of the Earth. There is no limit on the resolution, and the imagery is calculated from high-resolution 2560×1280 textures, so you can go wild with it even on 30″ flat panel displays. Multi-monitor configurations are also supported.
• Online: You select the date and time, specify the resolution up to 1920×1200 (WUXGA), and click Generate. A high-resolution lossless PNG file will be displayed in your browser.

Click here for Desktop Earth |  Click here for Desktop Earth Online | Visit SatelliteImageWallpaper.com for more Earth wallpaper

Via http://codefromthe70s.org/desktopearth.aspx