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LiveScience
LiveScience
Ben Turner

All of Neptune's clouds have mysteriously disappeared, and the sun may be to blame

An artist's illustration of Neptune, with faint streaks of wispy white clouds.

All of Neptune's clouds have vanished, and scientists think the sun is to blame.

The disappearance of the wispy, white strands of frozen methane that usually streak Neptune's azure face has been linked to changes in ultraviolet (UV) radiation as the sun's activity climbs to an 11-year maximum.

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