Neptune isn't the rich royal blue it was believed ... eighth planet in our solar system is in fact a delicate powder blue color, very similar in tone to its neighbor Uranus. For decades, famous ...
Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space ...
NASA's Voyager 2 captured this image at a range of 4.4 million miles from the planet, 4 days and 20 hours before closest approach. In this false color image of Neptune, objects that are deep in the ...
A planet’s opposition occurs when Earth passes between it and the Sun. As a consequence of that geometry, Neptune’s disk will appear to be 100% illuminated as seen from Earth. It will be 180º ...
Images from a space mission in the 1980s showed Neptune to be a rich blue and Uranus green. But a study has discovered that the two ice giant planets are both similar shades of greenish blue.
Located around 30 times as far from the Sun as Earth, Neptune is not visible to the naked eye. The planet's blue color comes from methane in its atmosphere, which absorbs red wavelengths of light.