Visitors to this site can access a variety of materials on astronomy and stargazing. Topics include stargazing tips, a monthly almanac, audio broadcasts, and links to news articles, books, and images. Full description.

This chapter from an online astronomy course briefly describes the formation of the solar system from an accretionary disk. Links to additional resources, a homework assignment, and a quiz are included. Full description.

In this activity, students will learn about the magnetosphere, the effects of solar activity, and the importance of the Earth's magnetic field in protecting living organisms from solar radiation. Background information, a materials list, procedures, outcomes, and standards are included. Links to a glossary and to additional information are embedded in the text. Full description.

Using this kit, students may construct paper models of the Hubble Space Telescope, the Chandra X-Ray Observatory, and the Compton Gamma Ray Observatory. Parts sheets for printing, instructions, and a list of other required materials are included. Links to other related sites are also provided. Full description.

Students may color and assemble this eight-cube paper puzzle of the solar system. Parts for printing, instructions, and reference materials on the planets are provided. Full description.

Students can construct a scale model of the U.S. Space Shuttle orbiter. Parts, which must be printed on paper, and instructions are provided. Full description.

Selected science questions are posted here and answered at the end of the week. Previous questions of the week and their answers are also listed in reverse chronological order. Full description.

This page links to several sites with reference materials covering such topics as solar storms and flares, the magnetosphere, and other issues in Sun-Earth research. Links to a glossary and to a summary of the Ulysses solar study mission are also included. Full description.

Each day a different image or photograph of a celestial object is featured. Pictures are selected for their particular beauty or astronomical interest, and each one is accompanied by a brief caption written by a professional astronomer. Links to additional information are embedded in the text of the caption. Previous pictures of the day are archived in reverse chronological order dating back to June ... Full description.

The information provided here includes general and technical information, data products, and links for all Landsat satellites and instruments up to the latest, Landsat 7, launched in 1999. Topics include a project description with objectives, orbit information, investigations of technical problems, an image gallery, information on searching and ordering data products, and links to sites that feature ... Full description.