Planets smaller than Neptune but larger than Earth, with atmospheres saturated with water vapor due to extreme temperatures, ...

Scientists have developed a new and improved method to better understand "steam world" exoplanets, a move that could refocus ...

Astronomers at UC Santa Cruz have developed a new model to better understand “steam worlds,” or water-rich sub-Neptunes—some of the most common planets in the universe.

Most people think of Uranus and Neptune as pale greenish blue and royal blue. But a new study shows the two planets are actually a very similar color.

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 appeared to be a pale cyan color, while Neptune was depicted as a striking deep blue. Voyager 2 captured images of each planet in separate colors, and the single-color images were combined ...

Uranus appeared to be a pale cyan color, while Neptune was depicted as a striking deep blue. Voyager 2 captured images of each planet in separate colors, and the single-color images were combined ...

Uranus appeared to be a pale cyan color, while Neptune was depicted as a striking deep blue. Voyager 2 captured images of each planet in separate colors, and the single-color images were combined ...