Voyager 2 is a spacecraft used by NASA to explore Jupiter, Saturn, Uranus, and Neptune. It is the only spacecraft that has come near to Uranus and Neptune. Because of this, a majority of pictures we see of these two ice planets came from this spacecraft. It was identical in form to its sister ship, "Voyager 1". The probe is currently moving away from the solar system, and is heading out into interstellar space.