Feeling dopey? Refresh your “circadian eye” with a burst of orange light. Light is a powerful wake-up call, enhancing alertness and activity. Its effect is controlled by a group of ...

A bright burst of light illuminated the horizon over ... Rick Scott said he saw "a huge flash of what appeared to be orange light" while he was driving, but he didn't hear the boom or feel the ...

It so happens that blue light is scattered more because it travels in shorter wavelengths, and as a result, we perceive the sky as having a blue color. By contrast, red and orange light travel in ...

Data from Swift’s Ultraviolet/Optical (blue, green) and X-Ray (orange and red) telescopes are merged in this image. No visible light accompanied the burst, which alone suggests great distance.

Blue colors, and to a lesser extent green, are more strongly scattered or absorbed, Stutz said. That leaves us with the yellow and red part of solar light, making the sky look orange.