Eclipses, tides, seasons, stars and their formation, the universe, galaxies, Newton’s laws of gravitation,satellites, comets, space exploration, as well as an audio-visual database on all the planets in the solar system, are thoroughly detailed with photos, animation, and clear narration.System Requirements Windows: 486 processor or better, Windows 3.1/95/98/ME/2000/XP, 4MB RAM, sound card
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