Dramatic theories have been proposed to explain the mysterious interiors of Uranus and Neptune, the ice giants of our solar ...

Neptune is an ice giant, composed primarily of hydrogen, helium, and methane, with a hot, dense fluid of icy materials above a small rocky core. Neptune has 14 known moons and at least five main rings ...

NASA’s twin Voyager probes, which launched in 1977, are the longest-running missions to send data home. But as their power ...

and Voyager 2 is the only spacecraft to visit Uranus and Neptune. Each spacecraft still has three instruments apiece to study the sun’s protective bubble and the swath of space beyond.

Voyager 1 crossed into interstellar space in 2012, followed by Voyager 2 in 2018, making them the only spacecraft to operate ...

Space is *** very big place for real, and one of the biggest goals of humanity over the course of the last few decades is the concept of us sending things out into the Earth's orbit or into the ...

Voyager 1 flew past Jupiter in 1979 and Saturn in 1980, eschewing Uranus and Neptune because scientists wanted to fly past Titan, Saturn's fascinating moon, and could not do so without ruining the ...

NEW YORK — NASA is switching off two science instruments on its long-running twin Voyager spacecraft to save power. The space ...