Jupiter and Mars will appear to make ultraclose approaches to the moon on two nights this week. Here's how to get the best ...

People's ability to interpret emotions or focus on performing a task is reduced by short-term exposure to particulate matter (PM) air pollution, potentially making everyday activities, such as the ...

Chile's pristine, dark desert skies, world-renowned for astronomy, are at risk of being outshined by urban and industrial ...

Auroras have long mystified humanity. Now that we know what they are and why they happen, we can better predict how best to ...

Elected officials in Breckenridge and Frisco are answering a call from a group of passionate locals who have been pushing for ...

The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

With a nickname like Big Sky country, it's no surprise Montana is the ultimate destination for this year's celestial events, ...

Look to the southwest sky after sunset on Saturday, as the sliver of a waxing crescent moon nears bright Venus with Saturn ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

citing the impacts light pollution has on humans — from cancer to sleeping disorders. Sommer described the night sky as one of North Dakota's greatest assets. "Here in North Dakota, we have ...

On Jan. 9, Dark Sky advocate Jesse Melton spoke about “Light Pollution and What You Can Do About It” in the Robert C. Byrd Center for Congressional History & Education. Melton spoke on behalf of ...