Aciqra is a free and open source virtual planetarium and sky mapping program which tracks celestial bodies including planets, deep sky objects and stars to an accuracy of a fraction of a degree for thousands of years into both the future and the past.
View a dark energy inside Solar system on your dektop with this screensaver! This screensaver shows all planets of our solar system, uncluding Saturn`s rings. It makes you able to know about dark matter and dark energy in our planet system.
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Complete 2011 Nautical Almanac in pdf format. Includes monthly star charts with the planet's positions.
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Accurate, flexible wireframe simulator for the Voyager and Giotto space missions, with animation capability. Developed at JPL for science/navigation, and filmed by the BBC/NOVA. Conveniently runs from any Windows/DOS.
Downloads: 120011 - Freeware - Download Now