The world is awash with the color purple — lavender flowers, amethyst gemstones, plums, eggplants and purple emperor butterflies. But if you look closely at the visible-light portion of the ...

The exoplanet 51 Pegasi b lies some 50 light-years from Earth in the constellation of Pegasus. It was discovered in 1995 and will forever be remembered as the first confirmed exoplanet to be found ...

Please provide your email address to receive an email when new articles are posted on . Iron oxide, found in tinted sunscreens, can protect against the visible light spectrum. Bemotrizinol, a highly ...

A simulated view of what Mars' night sky might look like at its poles. Credit: NASA/JPL-Caltech/Cornell Univ./Arizona State Univ.– E. W. Knutsen The night sky at Mars' poles looks nothing like our own ...

Humans didn’t discover the presence of infrared light until well into the 1800s, and it’s taken us significantly longer to begin to crack what this portion of the visible light spectrum means. But ...

Sunlight contains an electromagnetic spectrum (special waves such as the kind in x-rays that travel through emptiness or a vacuum) of light that stretches from very short gamma rays to very long radio ...

"Current evidence suggests that it’s solar blue light that has the most meaningful impact on the skin, while everyday screen exposure is unlikely to cause significant damage." As such, screen settings ...

(Phys.org)—There are many different ways to generate a hologram, each with its own advantages and disadvantages. Trying to maximize the advantages, researchers in a new study have designed a hologram ...