Nestled atop Mars Hill in Flagstaff, Lowell Observatory has been a cornerstone of astronomical discovery since 1894 — and it’s still inspiring curiosity today.

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

As climate change has led to more severe weather, wildfires, storms and more, many people are thinking about how to save what ...

[I Heart Pluto Fest 2025 Audio]: 95 years ago this week, there's a 24-year-old, Kansas Farm Boy that had been working here in Flagstaff for about a year, and he had discovered a planet earlier ...

Legendary "Star Trek" actor William Shatner wants Elon Musk's help to convince President Trump to restore Pluto to greatness as scientists claim to have found a “new” ninth planet.

Check out our favorite fun things to do in Flagstaff with kids! You'll find everything from National Parks to wildlife and more.

TIME solicited nominations of places including hotels, cruises, restaurants, attractions, museums, parks, and more ...

In Flagstaff, Lowell Observatory has proclaimed the “Year of Pluto” and planned a series of celebrations, beginning with a visit Feb. 21 from mission leader Stern, who said in Tucson recently ...

Pluto was discovered 95 years ago. It has captured imaginations ever since.

Exterior of a telescope at Lowell Observatory in Flagstaff, Arizona. Clyde Tombaugh was working at Lowell in 1930 when he discovered the former planet Pluto.

When was Pluto discovered? Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory in Flagstaff. Cold, dark and distant, it was named after the Roman god ...

The astronomers at Lowell Observatory in Arizona are showing Pluto some love on the 95th anniversary of its discovery, regardless of whether we call it a planet or not.