Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Homolovi State Park was ranked among top road trip destinations in Arizona, and for good reason. Here's why you should make ...

If you look at the listing of such places here in Arizona, there’s one person who’s posted more than anyone else: Brett ...

The "Star Trek" legend's only son will discuss his memoir at the annual space-themed event.

Scientists across the world, including some in Arizona, are keeping an eye on an asteroid that has a very slim chance of ...

Sections of two major Valley freeways will be closed for construction projects this weekend, affecting drivers heading near ...

Mostly sunny with a high of 42 °F (5.6 °C). Winds NW at 9 mph (14.5 kph). Night - Partly cloudy. Winds variable at 5 to 8 mph (8 to 12.9 kph). The overnight low will be 22 °F (-5.6 °C). Mostly ...

A charming Arizona town in the west was designated as the world's first International Dark Sky City, meaning it offers beautiful views of the Milky Way.

A recent rainstorm broke a long dry streak, but warm and dry weather trends are expected to continue into spring.

A dry January across Colorado and the rest of the Rocky Mountain West has created a dichotomy of water haves and have-nots.