Light pollution map of North America. (Graphic by David Lorenz) The map closely resembles a population density map.

Light pollution is worst around major cities, which is why stargazers often travel to remote areas to get a clear look at the stars. Here is a map of North America with brighter colors on the map ...

Solar flares can affect us on Earth, and radiation from this flare caused a shortwave radio blackout. A map released by the ...

One look at a light pollution map Dark Sky Map can be pretty upsetting. Whole swaths of the earth, especially in North America, Europe and Asia have basically erased the night sky.

In a new study, published in the journal Frontiers in Neuroscience, Voigt-Zuwala and colleagues studied light pollution levels across 48 U.S. states and its association with Alzheimer's disease.

Some researchers estimate that North America experiences a 10% increase in light pollution — or the excessive use of artificial light — every year.

Some researchers estimate that North America experiences a 10% increase in light pollution — or the excessive use of artificial light — every year.

More than 80 percent of humanity is affected by light pollution, our view of the skies being stolen away. For most of us the stars are, in essence, going out. And each year it gets worse.

Fireflies put on a summertime light show Fireflies are the romantics of the insect world. In the summer months, they emerge from the ground with love on the brain. They only live for two to three ...