What is the purpose of light? How does light work? Why does light exist? This video explores the longstanding debate over whether light is composed of particles or waves. Albert Einstein demonstrated ...

It's that time of year again in the northern hemosphere. The days are getting shorter, the sun is setting sooner and the ...

Have you noticed you're sleeping a little longer? Maybe you're experiencing a shift in appetite — craving more sweets or pasta. In autumn, our bodies sense the change in light as the dark winter ...

Home lighting solutions have evolved to the point where you no longer need to roll off the couch to flip a switch. These days, you just have to press a button on your phone to light up the room. If ...

New York City will again honor the lives lost on 9/11 with the Tribute in Light display, shining beams of light into the sky that can be seen for dozens of miles. The 9/11 memorial display, which also ...