Tours of Mount Graham International Observatory will begin May 20 and run on Saturdays through late Oct. The tours are operated by Eastern Arizona College's Discovery Park Campus in Safford.

Mount Graham is a hulking mass of rock and forest rising from Arizona’s desert floor more than a mile and a half into an infinite sky. The Western Apache call it Dził nchaa si’an, which ...

You can see how they work for yourself with a tour. The Mount Graham International Observatory holds three powerful telescopes, including the famed Large Binocular Telescope Interferometer ...

Firefighters battling the Frye Fire on the north side of Mount Graham worked Saturday and through the night to improve 15 miles of control lines to protect Mount Graham International Observatory ...

threatening to engulf the Mount Graham International Observatory. Join NPR's Joe Palca and guests for an update on the fires, and the telescopes at Mount Graham.

There are tours nearly every weekend in summer and fall to the Mount Graham International Observatory, which sits atop the Pinaleño Mountains of southeastern Arizona. Space on the tours is ...

The Faculty Senate report states: “On ethical, material, political and cultural grounds, we cannot afford to join the MGIO (The Mount Graham International Observatory) project.” The American Indian ...

University police arrested five protesters for interrupting a Board of Regents meeting Friday, delaying it for an hour as they called on the University to end its involvement in the controversial ...

On March 15, 2012, the Large Binocular Telescope (LBT) made its first scientific results public; 25 years had passed since the project was first presented, but the wait was worth it. Among other ...

The UA's Mount Graham International Observatory is getting a new communication antenna to replace the one that's more than 10 years old. The new 40-foot mono-pole will offer scientists higher ...

The telescopes at the Mount Graham International Observatory peer into the heavens, seeking drama miles up in the sky. These days, though, the drama is much -- much -- closer to home. A ...