In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat previously thought impossible, as light typically passes through other light ...

The answer is something called the Gila Beam. The bright blue light is a high-powered LED laser shining into the sky from ...

Eerie beams of light are appearing at night along both sides of the U.S.-Canada border, and it didn’t take long for “UFO abduction rays” and “aliens beaming down” to enter the online discussion. In ...

For the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue illuminating ...

On Kings victory nights, you can hear the chant ringing through the Golden 1 Center, through downtown Sacramento, through video clips splashed across Twitter. There’s something magical and unifying ...

These light pillars appeared over Alix, Canada, when temperatures were minus-20 degrees, according to photographer Tree Tanner. Facebook screengrab Eerie beams of light are appearing at night along ...