NASAのインスタグラム(nasa) - 4月18日 01時52分

Watercolor world! When imaged at infrared wavelengths that pierce the planet's upper haze layer, the high-speed winds of Saturn's atmosphere produce watercolor-like patterns. With no solid surface creating atmospheric drag, winds on Saturn can reach speeds of more than 1,100 miles per hour (1,800 kilometers per hour) -- some of the fastest in the solar system.

The image was taken with the Cassini spacecraft wide-angle camera on Dec. 2, 2016, with a combination of spectral filters which preferentially admits wavelengths of near-infrared light centered at 728 nanometers.

Credit: NASA/JPL-Caltech/Space Science Institute

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