Image:Venus-pioneer-uv-black.jpg

Image:Venus-pioneer-uv.jpg, taken by NASA and photoshopped to a perfectly black background by (en:User:Rdsmith4). He released his changes to the image into the public domain on en.wiki: en:Image:Venus-pioneer-uv-black.jpg.

Ultraviolet image of Venus' clouds as seen by the en:Pioneer Venus Orbiter (en:February 26, en:1979). The immense C- or Y-shaped features which are visible only in these wavelengths are individually short lived, but reform often enough to be considered a permanent feature of Venus' clouds. The mechanism by which Venus' clouds absorb ultraviolet is not well understood.

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