The homepage of the Visitor Center at Goddard Space Flight Center provides access to a variety of information about the history, missions, and upcoming events at the center. Users can find information on public exhibits, educational resources, and programs on space and Earth science and technology. Full description.

This tutorial explains how satellite images are taken, transmitted to Earth, and converted into viewable form. Descriptions of each phase of the process are included: capture and transmittal of the image by a satellite or spacecraft, receiving the signal at one of the Deep Space Network's antennas, and processing the data into an image at the Jet Propulsion Laboratory's Multimission Image Processing ... 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.

This site offers students an opportunity to participate in a pictorial voyage that follows the NEAR spacecraft from its inception through the cruise phase to asteroid 433 Eros. They will learn about the rationale for visiting an asteroid, the instruments and construction of the spacecraft, and follow its flyby of the asteroid Mathilde, swingby of Earth, and encounter with Eros. Full description.

This site contains pictures of Near Earth Asteroid Rendezvous (NEAR) instruments and satellites that can be downloaded and colored by students. Kids can send their pictures to NASA for display. Full description.

In this activity, the teacher will construct a "comet" from ingredients that closely resemble the substances which make up a real comet. A list of ingredients, materials, and instructions are provided. Students can watch the comet as it melts, releasing jets of carbon dioxide and becoming pitted with craters in much the same way as a real one. 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 article presents text, images, and animations of a solar flare and coronal mass ejection that occurred in August 1999. Links to related topics and articles are inlcuded. Full description.

This online magazine features articles on astronomy and environmental issues. Users can access sky charts for viewing celestial objects, weather reports for viewing conditions, or sign up for email lists to stay informed of upcoming celestial events. Full description.