Planet Mercury 3D Screensaver
Mercury is the closest planet to the Sun, and the second-smallest planet in the solar system! It is about the same size as our Moon. Mercury travels around the Sun faster than any other planet. That is how it got its name. It was named after Mercury, the swift messenger of the gods in ancient... The planet can only be seen from Earth just before sunrise or just after sunset. ... But of course you can always download Planet Mercury 3D screensaver that will get you acquainted with this mysterious planet!
http://www.space-screensavers.com/files/planetmercury3d.exe - 2Mb - Download - Screenshot

Planet Venus 3D Screensaver
Venus is the second planet from the Sun and the sixth largest. The name comes from the Roman goddess of love and beauty. Venus has been known since prehistoric times. It is the brightest object in the sky except for the Sun and the Moon. It was long thought of as the Earth's twin. ... Planet Venus 3D Screensaver is a great 3D model of the planet that will turn your desktop into the eyepiece of a powerful telescope. ... In reality the harsh conditions of Venus restrict our understanding of Earth's nearest neighbor.
http://www.space-screensavers.com/files/planetvenus3d.exe - 4Mb - Download - Screenshot

Planet Mars 3D Screensaver
Mars has always fascinated people. Its red, fiery appearance is mysterious and intriguing. Many believed in the existence of an ancient race of Martians that appeared in numerous sci-fi stories. However with new data coming from space probes, a growing number of scientists now believe that life... It is a relatively small planet, with about half the diameter of Earth. ... Its surface would be a harsh place for humans, but it is more like the surface of Earth than that of any other planet. ... The planet?
http://www.space-screensavers.com/files/planetmars3d.exe - 3Mb - Download - Screenshot

Jupiter 3D Space Tour
Fascinating 3D animated space flight near the largest planet within the solar system - Jupiter. Enormous "gas giant" planet is 315 times more massive than Earth. Jupiter deserve to term it a "failed star", although it would need to be some heavier to become a Second Sun. ... Jupiter is perpetually covered with mighty layer of clouds, and biggest tornados of the Earth are nothing in comparison with giant storms permanently raging on this planet. ... The largest of Jovian tornados is the Great Red Spot, a storm larger than Earth which still active during four centuries!
http://www.fpsoftlab.com/jupiter3d.exe - 3Mb - Download - Screenshot

Planet Earth 3D Screensaver
Space tourism is only available to exceptionally wealthy people. Among its primary attractions is the awesome and thrilling feeling of looking at the Earth from space described by all astronauts as extremely intense and mind-boggling. This screensaver provides a unique opportunity to do that... It is a fantastically realistic 3D model that also has enchanting views of the Moon and well-known constellations like Orion and the Big Dipper. ... Great educational content! ... You will actually get to see more than a 'regular' space tourist.
http://www.3d-screensaver-downloads.com/files/planetearth3d.exe - 4Mb - Download - Screenshot

Home Planet Earth 3D Screensaver
Space tourism is only available to exceptionally wealthy people. Among its primary attractions is the awesome and thrilling feeling of looking at the Earth from space described by all astronauts as extremely intense and mind-boggling. This screensaver provides a unique opportunity to do that... It is a fantastically realistic 3D model that also has enchanting views of the Moon and well-known constellations like Orion and the Big Dipper. ... Great educational content! ... You will actually get to see more than a 'regular' space tourist.
http://www.digimindsoft.com/planetearth3d.exe - 4Mb - Download - Screenshot

Crawler 3D Earth Screensaver
Download FREE 3D Earth screensaver and take a journey around the planet Earth! Realistic cloud animation allows you to watch storms and hurricanes. Receive weather forecasts, explore foreign countries, zoom in and out and rotate the globe. 3D Earth presents real Moon & Sun positions and includes... Watch the planet Earth the way only astronauts do! ... 3D Earth also presents live animated weather data. ... Crawler Toolbar and 3D Earth screensaver are safe and do not contain any malicious software or facilitate pop-up ads.
http://download.crawler.com/dnl/config/58/Crawler3DEarthSetup.exe - 2Mb - Download - Screenshot

Grand Tour 3D
The Distant Suns-Grand Tour 3D screen saver is a high-speed full motion solar-system simulator using OpenGL technology and accelerated graphics. The positions and rotations of each of the planets and their moons are accurate to the current date and time! ... ) As the day progresses you can observe the Great Red Spot of Jupiter as it wheels across the face of the giant planet. ... Watch the moons of Saturn in their daily dance around the majestic ringed world or the Earth rotate under your feet. ... The constantly changing scenes assure and infinite variety of interplanetary vistas.
ftp://ftp.monkeybyte.com/WinOS/ds_ss_install.EXE - 2Mb - Download - Screenshot

Almanac
Almanac gives you the capability to determine the times of rising, setting, and meridian transit for the sun, the moon, and the planets. It also enables you to calculate the beginning and ending of astronomical, nautical, and civil twilight. The results of the calculations are formatted and... Lunar parallax changes the perceived altitude of the moon because the observer is not at the center of the earth. ... Parallax makes that the moon appears lower in the sky. ... The formulae used in Almanac assume an ideal horizon where the intersection of the sky with the apparent plane of the...
http://home.att.net/~srschmitt/ALMNAC10.zip - 587Kb - Download - Screenshot

Solar System 3D Simulator
Solar System 3D Simulator is a FREE software application that generates a realistic solar system model and planets in 3 Dimension on the PC using advanced physics formulas. It can display the planets and their orbits, the sun and the moon. The nine planets including planet earth and their... The program has a fully graphical menu oriented interface designed for ease of use. ... The Solar System 3D software has been designed for fast setup and interactivity with excellent high quality visual output.
http://www.sciencefair-projects.org/solarsystem/solarsystem.html - 5Mb - Download - Screenshot