People love the rainbow of ROYGBIV colors: red, orange, yellow, green, blue, indigo and violet. Human eyes perceive visible light as this array of colors. You may notice that some colors you can ...

While humans possess three kinds of color-sensitive cones, birds have four. This is an Inside Science story. Hummingbirds can see colors humans can only imagine, an ability that now sheds light on an ...

A recent claim by scientists has stunned the internet: one color we all know and love doesn’t technically exist. Despite its widespread popularity and cultural significance, researchers say it’s ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Hummingbirds can see an impressive array of colors that are ...

It's not easy being green. Scientists for years have made small red and blue lasers, but other colors, including green, have been a challenge. A team has now filled this technology gap by creating ...

For years, scientists have fabricated small, high-quality lasers that generate red and blue light. However, the method they typically employ — injecting electric current into semiconductors — hasn’t ...