While we get snow in Tucson once in a blue moon, Mount Lemmon, which is about 40 miles away, experiences snow days far more. After a fun day of snowball fights, skiing down mountains and building ...

I enjoyed the letter about Mt. Lemmon speeders. I agree with just about all of it except suggesting the racers go at night. Not only is it more hazardous then but that's pretty much the empty road ...

Prescribed fires are currently underway at Oracle State Park, north of Mount Lemmon, according to the Department of Forestry ...

Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its ...

The desert city in southern Arizona is a sanctuary for stargazers—and now it's even easier for visitors to explore.

Martian clouds are almost always made of dry ice, or frozen carbon dioxide. 95% of the planet's atmosphere is CO2.

Lemmon, who lives along Route 981 not far from the airport, said she’s found traveling south to church services in Mt. Pleasant easier going since the recent completion of the first section of ...

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...