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 ...

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.