Legendary actor William Shatner wants President Trump to restore Pluto to greatness as scientists claim to have found a “new” ...

Clyde Tombaugh’s bosses at Lowell Observatory in Flagstaff had him looking ... a serendipitous discovery,” Schindler said. Some of Pluto’s moons were also discovered accidentally.

At the Lowell Observatory, visitors can conjure their inner astronomer by peering through world-class telescopes and sitting in on lectures on topics like black holes and the history of Pluto.

One Pluto year equals 248 Earth years. At 1473 miles in diameter—about half the width of the United States—Pluto is the ...

Calling all history buffs! Step back in time at one of these significant sites in each state, from Revolutionary War ...

From astronomy to environmental science, these are the coolest jobs Arizonans have and how much they make, according to a new study.

With its cherry orchards, lakeside charm and creative spirit, Traverse City offers one of the most unexpected and rewarding ...

Beyond the vintage diners and roadside kitsch, Route 66 passes stunning natural attractions from Missouri caves to Arizona ...

In recent years Lowell Observatory has enjoyed a resurgence ... quick peek at the sun (daily at 12:30 p.m.) or stroll down the Pluto Walk to see the 13-inch photographic telescope that Clyde ...

A tourist visiting Cathedral Rock southwest of Sedona city limits captured video of a group of four young men vandalizing the ...

On Tuesday, May 13, the Sedona City Council formally crowned Poet Laureate Gary Every and Youth Poet Laureate Anya Blue Lior.

This week, an old astronomical controversy is renewed as researchers present new evidence for a hidden "Planet X" in our solar system.