Don't look so blue, Neptune: Now astronomers know this planet's true color

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. (NASA/JPL-Caltech)

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 light greenish blue. It's actually pretty similar in color to its fellow ice giant Uranus, also visited by Voyager 2.