For example, the NASA and NOAA sponsored Geostationary Operational Environmental Satellite is indexed under the year 2002. When visitors select the title of this mission, they see a page that explains that the mission's objective is to improve weather forecasting with better imagery and sounding information. A paragraph describes the mission details and a link takes visitors to the mission's own web site. One of the highlighted technologies collects tiny particle from space. A timeline on the site chronologically organizes spacecraft propulsion from 2350 B.C. to 1998.
Visitors can use the site's information to complete an online crossword puzzle.