President Donald Trump's tax and policy bill could slow Arizona's clean energy industry, but companies aren't talking.

Jeff Flake is serious and principled, the kind of leader I would prefer in the Republican Party. But Donald Trump is the ...

New data shows that water levels in major reservoirs including Lakes Mead and Powell are well below average for this time of ...

The project aims to provide hands-on student research opportunities spanning multiple disciplines for years to come.

A ground stop was underway at Sky Harbor, but it is now just a ground delay with the average delay lasting almost an hour.

How does it take for an animal to make its mark in history particularly when its bones are as delicate as a potato chip? Eotephradactylus mcintireae’s answer is a mix of volcanic ash, river ...

The West is filled with land that helps to preserve vital wildlife habitats, according to conservation groups and ecologists.

The diversity of ecosystems around Sierra Vista creates a wildlife viewing experience that rivals much more famous ...

Nestled within the Lake Mead National Recreation Area near the Arizona-Nevada border, this natural observation deck offers ...

It's hot outside and sticky, but while the monsoon has arrived in Phoenix, there's not enough moisture for rain.

Temperatures on July 4 reached 102 degrees in the Phoenix area. For tonight, temperatures will drop down to around 85 degrees ...