Astrobot Diaries
- Follow the biweekly communications of two LEGO minifigures who are flying to Mars as part of the Mars Exploration Rover mission set to land in January 2004 on the red planet.
- http://www.planetary.org/programs/projects/red_rover_goes_to_mars/astrobots.html

Mars Stations: Drive A Rover
- Drive a LEGO Rover over the internet at a series of Mars Stations.
- http://www.planetary.org/programs/projects/drive_a_mars_rover/

Galileo Project Home
- NASA's homepage for the Jupiter-orbiting spacecraft. Includes mission reports, planetary facts, a summary of Galilean discoveries, animations, and an extensive photograph gallery.
- http://galileo.jpl.nasa.gov/

Mission to Mars with Bill Nye
- See why Mars is so fascinating to many astronomical scientists. Includes photos of the rover and the planet, as well as a glossary of terms and timeline.
- http://athena.cornell.edu/kids/

Event Scope
- A 3D game-like computer interface that allows students to virtually explore remote places like Mars and other planets. Students assume the roles of space scientists in the exploration of these locations from their own classrooms.
- http://www.eventscope.org

Moonshot
- A timeline of space exploration from the 1957 launch of Sputnik I to the present time. Includes links to other sites.
- http://www.historychannel.com/exhibits/moonshots/

Liftoff to Space Exploration
- Includes facts about launches, satellites, space stations, and astronaut training.
- http://liftoff.msfc.nasa.gov/

Chronology of Lunar and Planetary Exploration
- Timeline of missions to Earth's moon and the planets, by year, from the NASA Data Center.
- http://nssdc.gsfc.nasa.gov/planetary/chrono.html

NASA Jet Propulsion Laboratory
- The lead U.S. center for robotic exploration of the solar system.
- http://www.jpl.nasa.gov/