This Hubble Space Telescope (HST) image shows Saturn in its real colours, highlighting the planet's pastel shades. Saturn's high-altitude clouds are made of colourless ammonia ice. Above these clouds is a layer of haze or smog, produced when ultraviolet light from the sun shines on methane gas. The smog contributes to the planet's subtle colour variations.

True colour HST image of Saturn.

© Space Telescope Science Institute

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