The central attraction is an interactive mission simulation, which puts you in control of design and execution of a mission with a probe landing on Mars. The site is aimed at people 14 years and up. If you are younger have a look at the StarChild site listed below. This site provides a multimedia adventure of the Sun, planets, moon, comets, asteroids, and more. There is information on the history of space exploration, rocketry, early astronauts, space missions, spacecraft, scientific facts, graphics and videos.
Thumbnail images lead one to extensive information about the listed topics.
This is the Center for Excellence for Information Technology. The Center is also responsible for conducting the mission of astrobiology - research devoted to the study of life in the universe, the role of gravity in living systems, and the study of the Earth's atmosphere and ecosystems. This site provides links to space history and manned missions. NASA Langley Research Center Yahoo links to all the research labs. Listed by country.