Neptune has long been depicted as a deeper, darker blue than its fellow ice giant Uranus, but a new study shows that both are a similar shade of... Don't look so blue, Neptune: Now astronomers know ...

Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar ...

An image of Uranus on the left and Neptune on the right. They look almost indiscernible as they're both light blues. In the summer of 1989, from a remote expanse of our solar system where sunlight is ...

Imagine predicting an entire planet's existence with nothing but math, and then finding it right where the numbers ...

In 1989, Voyager 2 became the first and only spacecraft to ever fly by Neptune, and images from that mission famously show a planet that's a deep azure color. But in reality, Neptune is far more of a ...

In pictures of the farthest planets from the sun, Uranus looks like a pale-green orb, while Neptune usually looks much bluer. A new analysis revealed their true colors. Here's NPR's Nell ...

When Voyager 2 flew by Neptune in 1989, it sent back images that were processed to better reveal features like bands and a dark spot. But a new study says it's actually a greener planet.