The Voyager explorers, which provided scientists and the world with the first detailed pictures of faraway planets, were designed and tested during 1972 to 1977. The two most intelligent machines ever built in the NASA space program, the explorers were launched from Cape Canaveral, Fla., in 1977. Voyager 2 was launched first on August 20, followed by Voyager 1 on September 5.
Some of the station's notable achievements:
The first method for detecting radioactive particles in water supplies
A successful system of slow-sand filter beds for drinking water
The landmark demonstration that microorganisms carried within filter media could degrade sewage