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, ...

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

Rise and shine: It’s a new year and couturiers are hoping for brighter things ahead in 2025, offering a celebration of ...

To locate Corona Borealis, start with the Plough (Big Dipper) and follow the curve of its handle down to Arcturus, the brightest star in the neighbouring constellation Bootes. To the left of Arcturus, ...