An invisible band of radiation with wavelengths from 400 to 10 nm, ultraviolet (UV) light starts at the end of visible light and ends at the beginning of X-rays. The primary source of ultraviolet ...

The part of the electromagnetic spectrum that humans perceive. The infrared and ultraviolet bands precede and follow visible light. See visible light communication. THIS DEFINITION IS FOR PERSONAL USE ...

Six species of North American bats glow under ultraviolet lighting, according to a new study. Researchers don’t know why certain mammals exhibit this odd trait.

NASA released a photo of Jupiter that shows the planet in a whole new light.Related video above: NASA captures volcanic world of Jupiter's moon IoThis new look at the gas giant is from the Hubble ...

RENO (AP) -- Encouraged by three years of experimentation, scientists at Lake Tahoe plan to expand the use of ultraviolet light to kill algae and other invasive plants that eat away at the clarity of ...