Everyone's had a photo that makes their eyes appear bright red. What is the cause of red eye, and what are some of the ways ...

Scientists discovered strange light pulses that appear without buildup and resist interference, thanks to time’s one-way flow ...

There's a blaze of light across the sky! A fireball is seen by thousands, and mobile phone and dashcam footage soon appears ...

Here are some of the most common car warning light indicators, and advice from CR's auto pros on what to do if they light up ...

Wang and Gao were investigating "beautiful" (in Gao's words) damages in PLECs called "electrical treeing," where tree-like branches ... "for the green light flashes, since MEH-PPV does not emit ...