Educational earth science resources and software produced by Rice University in collaboration with the Houston Museum of Natural Science, funded by NASA under the Office of Earth Science…

The rotation period of a large body circled by one or more satellites can be calculated theoretically.

Offers overview information. Includes list of planetary space missions.

Overview of asteroids, comets, meteors. Images, data, links.

General information on the object officially known as 2003 VB12. This object is the most distant body known that orbits our Sun.

Listing and description of dynamical groups and physical families of asteroids.

Overview of current scientific knowledge of asteroids.

Guide with both general and statistical data.

Outlines the history of the debate.

General information, some statistical data and links.

General features and some pictures.

General information, some statistical data and links.

Overview with data, text, images, links.

Overview with data, text, images, links.

Overview with data, text, images, links.

Realistic, interactive, 3D walk-though of a Mars base designed for the first humans to land on Mars including a Mars habitat, greenhouse, Mars car and robot rovers.

Seven short articles regarding life on mars, extra terrestrial life, and man getting to mars.

General information, some statistical data and links.

General information, some statistical data and links.

Dedicated to amateur radial velocity studies.