Arizona tribes and two environmental groups met the fling deadline to challenge federal approval for construction of a massive power line across the San Pedro Valley, a ...

After rebounding in recent decades thanks to conservation efforts, the number of once-imperiled peregrine falcons in the U.S.

Mark Meadows cannot be charged in Arizona's fake elector case because he was White House chief of staff for President Trump's first term, a new court filing ...

Tucson recorded over five inches of rain in the first half of last year’s monsoon and less than half an inch in the second half, according to the National Weather Service . It was the 61st-driest ...

WASHINGTON — Elon Musk criticized the centerpiece of President Donald Trump's legislative agenda, a significant fracture in a ...

Strauss' “Blue Danube” waltz is heading into space this month to mark the 200th anniversary of the composer's birth.

Arizona Treasurer Kimberly Yee on Wednesday said she'd be a better superintendent of public instruction than fellow Republican Tom Horne.

Harvard University will relinquish 175-year-old photographs believed to be the earliest taken of enslaved people to a South ...

Chris Keyser, airport's wildlife specialist and the dog handler, shows how he works with two dogs, Hercules and Ned, to keep birds off the airport to keep people safe. (AP ...

We admire the quiet roads, handmade goods and strong communities. But are we overlooking the harms? This week, we explore the ...

Flamingos, pelicans, herons and parrots are just a few of the wild birds that call Miami home, but it’s the roosters, hens and baby chicks that have come to rule ...

Get ready for several years of even more record-breaking heat that pushes Earth to more deadly, fiery and uncomfortable extremes, two of the world's top weather agencies forecast.