Snakes' secret language of ultraviolet color: A hidden world of predator evasion and camouflage
In the study of why and how animals look the way they do, color is king—at least, the range of color humans can see. A ...
NGC 7293, better known as the Helix nebula, displays its ultraviolet glow courtesy of NASA's Galaxy Evolution Explorer (GALEX).
Discovered in the 18th century, the Helix Nebula, located about 700 light-years away in the constellation Aquarius, belongs ...
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Ultraviolet and electromagnetic waves in medicine
We cannot see ultraviolet (UV) light but it can have ... X-rays are absorbed by dense structures like bones, which is why X-ray photos are used to help identify broken bones.