Voyager 2 in depth from NASA https://solarsystem.nasa.gov/missions/voyager-2/in-depth/
Voyager 2 Instruments from the NASA Jet Propulsion Laboratory https://voyager.jpl.nasa.gov/mission/spacecraft/instruments/
Voyager Overview from NASA
https://www.nasa.gov/mission_pages/voyager/overview
Voyager 2: Sailing Among Giant Planets by Elizabeth Howell https://www.space.com/17693-voyager-2.html
Voyager 2 is still in space and relaying data back to NASA. In December of 2018, Voyager 2 entered interstellar space (considered by NASA to be outside of our solar system). In July of 2019, only five of the probe’s instruments were still working, and eventually, none of them will be functional. The engineers who built Voyager 2 anticipated this and equipped it with a golden record of music and greetings in over 60 different languages for any extraterrestrial beings who might find the probe after it fully stops functioning.
Between 1979 and 1989, Voyager 2 completed a flyby of each giant planet in our solar system. Below are summaries of the discoveries made during each flyby:
In order to effectively relay the data the spacecraft collected back to NASA, the probe was equipped with a number of technologies, including the following:
The craft also carried a number of experimental technologies, bringing the total cost to build Voyager 2 to 895 million US dollars.
Broadly, the goal of the Voyager missions was one of exploration. The spacecraft were intended to fly beyond the outer reaches of the solar system, exploring the outer-most planets along the way. Voyager 2, however, also had a more specific mission: to do a fly-by of all of the giant planets. Voyager 2 was also designated to serve as a backup for Voyager 1 that could change course and finish the mission if anything were to happen when it conducted the flybys of Saturn and Uranus.