Who's Out There? Searching for Extraterrestrial Intelligence -- [ Kids/Teens/Mature Teens ] - Game that explores tools & knowledge required to design a research project to search for extraterrestrial intelligence, then tests your skills at searching for alien signals. Visit

Build a Newtonian Physics Machine -- [ Kids/Teens ] - If you build it carefully, this Newtonian Physics Machine device demonstrates one of the basic laws of nature. Visit

Building an Inexpensive Galilean Style Telescope -- [ Mature Teens ] - Students at Rice University explain how they re-created the telescope that Galileo used to make the first ever magnified views of the stars & planets... & all for less than thirty dollars. Visit

Design a Satellite -- [ Kids/Teens ] - Play the game & learn how satellites are launched, how they get their power, & how they help you watch your favorite television show. Visit

Cassini Kid's Page -- [ Teens ] - Spacecraft Cassini is on its way to Saturn. Download the parts & instructions to build a paper model of the Cassini space probe. Find Saturn in the sky & discover more about this exciting adventure in space. Visit

Eyes on the Sky, Feet on the Ground -- [ Kids ] - This collection of children's on line astronomy activities, is a product of the Smithsonian Astrophysical Observatory. Designed for grades 2 to 6, it contains hundreds of fun explorations into astronomy as a classroom tool for learning how to theorize, experiment, and analyze data. Visit

Sea & Sky: Travelport Entrance -- [ Kids/Teens/Mature Teens ] - Fun & informative site for kids of all ages. Games, resources, galleries, and latest developments in exploration of sea & sky. Lots of great graphics. Visit

Mars: Just For Kids -- [ Kids ] - An official NASA site with games & activities for kids interested in interplanetary travel - especially to Mars. Visit

NASA for Kids -- [ Kids ] - Has games, stories & activities about space & aeronautics. Visit

Arty the Part Time Astronaut -- [ Kids ] - An interactive adventure for young astronomers guiding Arty & his alien friend Greg through our solar system. Visit

NASA Qwhiz -- [ Teens ] - Qwhiz is a real-time, multi-player web game for kids & teachers. Read some material on the Internet, then answer questions about it… Visit

Project Starshine -- [ Kids/Teens/Mature Teens ] - Your school can assist to build a satellite which will be launched from the Space Shuttle. You can track the Starshine satellites from your back yard. Visit

Walk the Solar System -- [ Teens ] - JavaScript calculator of sizes & distances of solar system bodies for making a scale model. Visit

Amazing Space -- [ Kids/Teens/Mature Teens ] - Collection of web-based activities designed for classroom use, but made available for virtually everyone to enjoy. Visit

StarChild: A Learning Center for Young Astronomers -- [ Kids ] - Offers an interactive gaming & entertainment center for kids who wish to learn more about the solar system, the universe, and space. Visit

The Children's Museum of Indianapolis: Cosmic Quest -- [ Kids/Teens/Mature Teens ] - Interactive space station design game with facts on requirements such as food, air & power. Includes information on the solar system & a description of an expedition to the North Magnetic Pole. Visit

Satellite Tracking & Prediction -- [ Teens/Mature Teens ] - See the space station, the space shuttle & many other satellites from your back yard. Visit

Jason Project: Be a Spacecraft Engineer -- [ Kids/Teens ] - Challenges you to design a spacecraft to protect the International Space Station. Visit