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

Nevada City pushes for Dark Sky certification to protect night sky In a world that's growing brighter by the year, one small gold rush town is working to keep its night dark and its skies full of ...

But on a clear, cloudless night, free from the glow of city lights, it can be easy to see stars, planets, constellations, and even the Milky Way — as long as the sky is dark enough.

When you look up at the night sky, can you see the stars? If you live in a large city or near one, the answer is probably no. The culprit is not just clouds and weather — it's light pollution.

YPSILANTI, MI – Ypsilanti leaders are weighing measures to darken the city’s skies at night. Excessive lighting is wasteful economically and unnecessarily releases more carbon dioxide ...

KANSAS CITY, Mo. — Space lovers, you'll want to turn your eyes to the night sky on Friday for a special sight. Five planets should be visible to the naked eye Friday evening.

The crescent moon will appear alongside the bright stars Castor and Pollux to form a smiling face in the night sky on May 29.

7 night sky events to see in April, from a meteor shower to the ‘pink moon’ The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this ...

The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the world-class stargazing that this city in Arizona has to offer.

At night, after the sun sets and its scattered light diminishes, the sky gets darker. But does it get completely dark—that is, with absolutely no light coming from between the stars?

The first state park in Kansas or Missouri to earn recognition from Dark Sky International is fixing lights that cause unnecessary glare and skyglow. Similar work is taking place at Truman State ...