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, ...

Neptune, long believed to be dark blue, is actually very pale like Uranus, scientists say. They used modern telescopes to re-assess artificially enhanced images taken by NASA's Voyager 2 probe. We can ...

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 ...

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 ...