The administration wants to cut funding for programs that help communities adapt to wildfire risk, sea-level rise and ...

Some parts of the moon are more interesting than others, especially when searching for future places for humans to land and ...

A study in a remote area near the McDowell Sonoran Preserve in Scottsdale shows early indicators of recent earthquake ...

Two Arizona landmarks are now on a national list of endangered historic places. There recognition highlights both the ...

At 4.1 magnitude near Greenback, the quake was large for our area. Experts look back on the last earthquakes to predict the ...

Arizona’s dark sky cities are turning the state into a top astrotourism destination. Valley 101 explores why visitors prefer ...

A river that drained the slopes of a now-vanished volcano may have carved Yosemite Valley's depths during the last 10 million ...