We tested four super bright flashlights that range from a laser-powered flashlight that shoots a beam over a .5 mile to a ...

If you’ve looked up at the night sky recently, you may have noticed some things that look a little out of the usual.

Yet there’s been a rise in recent years of reports that some streetlights are giving off a purple haze—a very emo teenager ... ultimately produces a bright white light. The thickness of ...

As soon as it gets dark, two bright lights become visible—the brightest in the southwest and an almost-as-bright light in the east. What are they?

LED light bulbs are bright, energy-efficient and can be equipped ... we've found the best LED lights for warm white light, cool white light and even multiple colors. So how do you choose the ...