International Technology Education Association
Pixel This!
Did the image I drew match the image you saw? By simulating a satellite and a ground station, teams of two transmit data in the form of pixels in order to recreate an image. They use four different levels of brightness, creating slightly...
NASA
Nasa Space Science Data Archive: Lunar Exploration Timeline
Available in both HTML and Shockwave formats, this site is a visual timeline of US, Soviet, and Japanese Lunar exploration. Each point of the timeline links to text information about that spacecraft and mission.