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Description
A study by UK astronomers found that Neptune and Uranus are actually similar shades of greenish blue. The study analyzed data from the Lowell Observatory in Arizona, the Space Telescope Imaging Spectrograph, and the MUSE spectrograph. The planets' color is mainly due to their methane-rich atmospheres. Methane absorbs light in the red and green wavelengths, and reflects blue.

Description
A study by UK astronomers found that Neptune and Uranus are actually similar shades of greenish blue. The study analyzed data from the Lowell Observatory in Arizona, the Space Telescope Imaging Spectrograph, and the MUSE spectrograph. The planets' color is mainly due to their methane-rich atmospheres. Methane absorbs light in the red and green wavelengths, and reflects blue.