Investigators have recovered most of the airplane and helicopter from the Potomac River, but continued searching for objects on the river floor.

A newly finished 4-year study of bobcats in Tucson documented several cases of mothers sharing urban spaces with their adult ...

Amid dangerous droughts, Arizona officials have attempted to address groundwater shortages by limiting development in the ...

Judge Bars Musk Team From Treasury Systems, Warning of ‘Irreparable Harm’ The judge’s order, a response to a lawsuit filed by 19 state attorneys general, creates a situation that could pose ...