Night Lights is a Screen Saver that displays a rotating image of the Earth showing night time urban illumination
Track Hurricanes with an interactive color 3D map. Recall over 100 years worth of historical storm tracks. Print your own tracking charts.
Astronomical clock that displays a 3D globe showing Earth’s day/night side, calculates time of your surise/set, moon phases, etc. Synchronize your PC’s clock over the Internet with the master clock at the US Naval Observatory. Includes screen saver.