Sea Star and Eelgrass Under Ultraviolet Light, Puget Sound, Washington
A long exposure captures the motion of a sea star moving through eelgrass at low tide in Puget Sound off Edmonds, Washington. The unusual colors are the result of the scene being photographed under ultraviolet light. The vibrant colors are the result of fluorescence, a type of photoluminescence, in which certain chemicals absorb light that is invisible to human eyes and emit some of it at a different wavelength that we can see.
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