Telescopes of all varieties gather information from the electromagnetic spectrum to make their images. Some of that light is visible, the stuff we can see with our eyes, and some of it isn’t. X-rays, ...

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 ...

Neptune, one of our most distant planetary neighbors, may not be the color we've always thought it was. Previous images of far-off planets showed Neptune as being a deep electric blue, while Uranus ...

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 ...

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.

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 ...