Voyager 2

Voyager 2 is a NASA space probe launched on 20 August 1977, 16 days before its twin Voyager 1. It flew past Jupiter (1979), Saturn (1981), Uranus (1986) and Neptune (1989), and is the only spacecraft to have visited either ice giant.

It entered interstellar space on 5 November 2018 at 119.7 AU from the Sun and now studies the interstellar medium, communicating through the Deep Space Network.