who studied neptune
Exploration of Neptune When the spacecraft visited the Neptunian system, Neptune was the farthest known body in the Solar system. It was not until 1999, that Pluto was further from the Sun in its trajectory. Voyager 2 studied Neptune's atmosphere, Neptune's rings, its magnetosphere, and Neptune's moons. The Neptunian system had been studied scientifically for many years with telescopes and indirect methods, but the close inspection by the Voyager 2 probe settled many issues and revealed a plethora of information that could not have been obtained otherwise.