The aurora borealis has become more visible to more states in recent months, after activity on the sun’s surface peaked.

Cities in California make up a significant proportion of the country's most polluted metropolitan areas when it comes to air ...

The LA area is once again the worst for ozone in the U.S., a pollutant impacting millions more people nationwide, the ...

The air is cool, the high desert is nearly completely silent, and the Milky Way stretches like glitter across the sky ...

States along the Canadian border may have an opportunity to see the northern lights again on Tuesday night, after recent ...

The Lyrid meteor shower—also known as the April Lyrids—is an annual meteor shower that typically occurs between April 15 and ...