Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.
The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.
The "Star Trek" legend's only son will discuss his memoir at the annual space-themed event.
A bill from freshman Tucson lawmaker Kevin Volk would add 'howdy' to the extensive list of items mentioned in state statute ...
An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years.
“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...
On February 18, 2007, the Samjhauta Express train carrying hundreds of Indians and Pakistanis across the border was bombed by ...
The school unveiled the "alternate identity" over the summer, paying homage to the northern Arizona area's rich astronomical ...
Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating and sometimes ...