NASA's Voyager 2 spacecraft made its closest approach to Jupiter. It came within 354,000 miles (570,000 kilometers) of the ...

Neptune is called an “ice giant” because it’s mostly made of a thick, slushy mix of water, methane, and ammonia, which ...

Its success allowed Voyager 2 to extend its mission, becoming the only spacecraft to perform close-up explorations of Uranus and Neptune before continuing the journey into interstellar space.