This animation shows a sequence of daily images of the southern hemisphere in which daily and seasonal fluctuations in the ozone hole over Antarctica can bee seen. The images were captured by the Total Ozone Mapping Spectrometer (TOMS), an instrument carried aboard the Earth Probe spacecraft. 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.

As part of this activity, students learn about geologic processes on Earth in order to interpret surface features recently seen on Europa by NASA's Galileo spacecraft. Materials presented here include a vocabulary list, geology jigsaw puzzle, review questions, and links to related sites. Full description.

Users can learn about the GEOTAIL spacecraft and its mission to study the Earth's magnetotail. Materials presented include an overview of the project, a diagram of the spacecraft, and a description of the instrument packages carried aboard the satellite. Full description.

This archive houses an extensive collection of imagery taken by the SeaWiFS instrument aboard the SeaStar spacecraft. Viewers can select ocean color or chlorophyll imagery, geographic features, coastlines, and other phenomena such as dust storms, plankton blooms, hurricanes, or fires. Movies, animations, and an extensive selection of links to related topics are also provided. Full description.

This resource focuses on NASA's interplanetary exploration and discovery missions. The site features links to topics that include news, the planets, missions (current and past), science and technology, a multimedia gallery of images and animations, NASA employees, a kids' section, and education and history sections. Full description.

Students can take this online quiz about the NEAR spacecraft and its mission. There are ten questions, and the score is calculated at the end. Links to other NEAR sites are included. Full description.

Visitors to this site can navigate through virtual reality images of the Stardust spacecraft as it encounters Comet Wild-2 in order to sample material from the comet. Full description.

This resource for kids offers access to games, stories, pictures and puzzles about Stardust, NASA's mission to explore a comet and to return with samples of cometary material. Full description.

This site consists of JPEG images of the planets, including photographs of Jupiter, Mars, Saturn, historic photographs, and artistic illustrations (montages). Links to other parts of the GRIN image library are provided. Full description.