When millions of people turn off their lights for Earth Hour each year, something remarkable happens in the night sky above ...

The best places to stay in Chicago are listed below. All of these Chicago hotels have been selected based on their location, style, rooms, facilities and dining options.

Now scientists from Australia say the disruption that light causes to the body's natural clock, known as the circadian rhythm ...

It's the time of year when the setting sun lines up perfectly with New York City's street grid, creating a stupendous solar ...