The images cover all the planets in the solar system including the Earth and Moon, as well as images of comets, asteroids, meteorites, lunar samples, spacecraft, and many of the moons of other planets. Each image is accompanied by a caption and information about solar system bodies and about various spacecraft that explored them, at approximately a high school or college level. The second is a NCSA Mosaic hypertext file. Unlike the Macintosh program, the NCSA Mosaic software is not on the CD-ROM but can be acquired from NCSA's anonymous ftp server. Inclusion of these files allows the user to display them using GIF image viewers.
Sound files are also available for the captions so they can be read aloud by the computer.