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 ...

The human brain is remarkably good at adjusting to different light conditions. Think about wearing a pair of tinted sunglasses: At first, the tint is noticeable, but after a while, colors begin to ...

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 light greenish blue. Why it matters: In a description ...

People from cultures across the world have been looking at Mars since ancient times. Because it appears reddish, it has often been called the red planet.

Hidden by sunlight today, the New Moon and three planets parade across the sky in the constellations Libra and Scorpius. One of those planets, Saturn, just had its biggest moons mapped in rich color ...

Atmospheric characterization of directly imaged planets has thus far been limited to ground-based observations of young, self-luminous, Jovian planets. Near-term space- and ground- based facilities ...

Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar system. The discovery of Neptune in 1846 was not just the triumph of mathematics ...

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.

Although not an official conjunction, three planets and the Moon are grouped within about 10 degrees of the Sun today. Except for the Moon, which will move on into the evening sky, the planets will be ...