Question: What’s the brightest light on Earth in regular use?
Answer: Las Vegas is the world’s brightest city at night, and the pyramid-shaped Luxor hotel boasts the brightest single light of all: The Sky Beam. Powered by 39 xenon lights with 7,000-watt bulbs amplified by mirrors, the light can be seen from 275 miles away on a clear night and can be used by pilots for navigation. It’s brighter than 42,000 lighthouse lamps combined and can reach temperatures as high as 500 degrees F.
