The next time you see the UV index in the weather forecast, look more closely. You can protect yourself from too much sun.

Physicists at ETH Zurich have developed a lens that can transform infrared light into visible light by halving the wavelength ...

They vary depending on wavelength — the shorter ... atmosphere there is to absorb radiation. UV levels increase by roughly 10% with every 1,000 meters or 3,280 feet of elevation.

Climate extremes are changing sunlight and UV levels in Lake Tahoe, affecting clarity, ecosystems and lake management.

The Blueair Classic Pro CP7i can remove viruses and bacteria using violet-blue light, but it is not the only feature that ...

Astronauts Steven Smith and John Grunsfeld, appear as small figures in this wide-angle photograph from December 1999, taken ...

Edinburgh Instruments, a spectroscopy instrument manufacturer based in Scotland, launched a new benchtop system for fluorescence spectroscopy. The FS5 v2 Spectrofluorometer is suitable for perovskite ...

Lenses are the most widely used optical devices. Camera lens or objectives, for example, produce a sharp photo or video by ...