Take a Virtual Reality Tour of the Planet Mars-3D. 4GB on DVD... Better than a movie, screensaver or books on Mars, Venus, Jupiter, Saturn... Covers the years 2004-2007 of the MER Spirit Mission. Similar to 3D games. See many Martian panoramas from any angle, craters, mountains, rocks, 3D images, maps... VRPresents hobby software for people interested in astronomy, cosmos, solar system, space flights, galaxies, stars, nebulae, Milky Way Galaxy...