The Voyager program consists of a pair of unmanned scientific probes, Voyager 1 and Voyager 2. They were launched in 1977 to take advantage of a favorable planetary alignment of the late 1970s. Although they were officially designed to study just Jupiter and Saturn, the two probes were able to continue their mission into the outer solar system. They have since continued out and have since exited the solar system. These probes were built at JPL and were funded by NASA.
Both missions have gathered large amounts of data about the gas giants of the solar system, of which little information was known until the launches of the Galileo spacecraft and the Cassini-Huygens mission. In addition, the spacecraft trajectories have been used to place limits on the existence of a hypothetical post-Plutonian Planet X.
- NASA Voyager website - Main source of information.
- Voyager Spacecraft Lifetime
- Spacecraft Escaping the Solar System - current positions and diagrams
- Voyager 1 and 2 atlas of six Saturnian satellites (PDF format) 1984
- Mission state