Other
Mars today.com: Home Page
MarsToday.com provides a collection of sites related to the planet Mars. Not your dad's "Whole Earth Catalog" since it's missing all of the advertising and humor. Latest news, basic planetary facts, and historic missions to Mars.
Other
The Apollo Society: The Solar System
Contains a small set of images of solar system objects and a series of links to information about all solar system objects. Solar System Tours link to excellent image collections.
Web Elements
Web Elements Periodic Table: Nickel
A nice collection of all sorts of information on nickel, its properties, isotopes and uses. Very informative.
PBS
Pbs Teachers: Origins: Earth Is Born
Collect micrometeorites from space -- remnants of the time when the solar system formed about 4.6 billion years ago. Create a sky dust collector, sort particularate matter according to attributes and identify micrometeorites by their...
Cosmo Learning
Cosmo Learning: Astrobiology and Space Exploration
A collection of video lectures from several guest speakers about issues of astrobiology and space exploration at Stanford University. The lectures cover topics like Martian meteorites, planetary system, life in space, and satellites....
Smithsonian Institution
National Museum of Natural History: Department of Mineral Sciences
Useful interface and gateway into the research collections of the Department of Mineral Sciences at the Smithsonian's National Museum of Natural History. Find information, image galleries, exhibits, specimens, and related resources about...