Why don't we have neon-green ice giants? The Earth itself is so famously blue that its blue hue, viewed from the vantage ...

Unlike night-vision goggles, which can only see infrared light in green, people wearing the contacts can see infrared light ...

Blue animals are some of the most stunning in the natural world – but also some of the rarest. In this video, we explore the ...

Blue light may contribute to headaches, but it's likely that other factors, like eye strain from staring at a screen for too ...

As many people sit at the wheel of their car, they are certain they know what color is. It's the red traffic light in front ...

Research reveals how blue light affects sleep patterns and eye health, with solutions beyond special glasses that can reduce ...

Fluorescent and LED (light-emitting diode) light bulbs also give off blue light. Each color in the visible light spectrum has a different wavelength and energy level. Blue light has shorter ...

Humans are able to see in color thanks to three different types of photoreceptor "cone" cells embedded in the retina. Each type of cone is sensitive to different wavelengths of light: S cones ...