A useful guide for environmental impact reporting and as a systematic reference.

An article about the Planetary Science Institutes's advanced computer software, which it uses to model the way the solar system may have formed. Includes some insights into the results already obtained.

A variety of hands-on activities, investigations, and explorations designed to engage learners in discovering planet Jupiter.

A variety of hands-on activities designed to engage children in learning about the moon.

This resource argues that the moon was formed from debris resulting from an impact to the Earth 4.5 billion years ago.

The innovative resource examines images of the Sun, Moon, Pluto, and all eight planets in the Solar System. Learners calculate the diameter of each object and rank the objects in order of size. The activity has an interactive online...

Features a collection of hands-on activities, investigations, and explorations designed to engage students in learning about ice, both in the solar system and on planet Earth.

This site from the National Space Science Data Center provides information on the Giotto mission which was designed to study Comet P/Halley. The spacecraft encountered Halley on March 13, 1986 and approached to within 600 km. This page...

Under the heading, "Cracking the Code of Faraway Worlds" this site explores the uses of spectrum (and spectrograph, spectra) in planetary study. In addition to an image, a description of spectrum and its uses in space science is provided.

From ABC News in Science, Larry O'Hanlon's article on the universe presents research related to the expanding of the universe and the corresponding distance between planetary objects.

This site gives an overview of the Hubble Space Telescope program. It also gives details about the previous and current science instruments used in the program, and information about the mission operations and observations.

A look back at the first lunar landing by Apollo 11 in July of 1969. Site has links to audio clips and images from the mission and other Apollo web sites.

This image, titled "Is There Anybody Home?" features six fuzzy pictures depicting six stars associated with known planets. The text under the image details various specifics about the picture and the planetary system associated with the...

Discusses the information from the NASA spacecraft Messenger as it orbits Mercury and transmits photographs of the planet's surface to Earth.

Learn about the first astrogeologist and discoverer of the comet Shoemaker-Levy 9.

Detailed information about the Magellan Mission to Venus with images of major surface features and two images of the spacecraft.