America's rapid adoption of LED lighting saves money and uses less electricity. But it's also making it harder to see the stars. Light pollution comes from excessive artificial light that causes ...

The first state park in Kansas or Missouri to earn recognition from Dark Sky International is fixing lights that cause ...

"The shape of the stellar halo is a very ... The stellar halo extends out several hundred thousand light years above and below the star-filled plane of our galaxy, where our Solar System resides.