As the U.S. continues to wait for newer sunscreen ingredients, patients should use tinted sunscreens to protect against visible light that causes photodamage, melasma and hyperpigmentation, according ...

As photons with wavelengths within a range of about 400–700 nanometers stream into your eyes, your brain perceives them as light. Scientists call these photons visible radiation. You perceive ...

The aurora borealis are set to be visible due to "ongoing fast solar winds" in the northern hemisphere and should be visible ...

This work reports the design of an efficient multiband UC system based on Ln3+/Yb3+-doped core-shell upconversion ...