The Flagstaff Open Space Program hosted a guided educational hike at Picture Canyon Natural and Cultural Reserve on March 29 ...

The city of Tucson, Arizona, sits on America’s southern border, surrounded by the cactus-strewn landscapes of the Sonoran ...

The city of Tucson, Arizona, sits on America’s southern border, surrounded by the cactus-strewn landscapes of the Sonoran ...

From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

The map relies on a combination of Indigenous knowledge and government data to map water resources and Indigenous communities ...

The Grand Canyon is, to put it simply... grand. Those views you hear about? They’re just as jaw-dropping as they’re rumored ...

Perseverance just stumbled upon one of Mars’ weirdest rocks yet—a formation covered in dark, spherical shapes with mysterious ...

An earthquake that shook Southern California today was centered near the community of Julian, about 45 miles northeast of San ...

The Astrogeology Science Center, which has helped astronauts and robots reach other worlds safely, is facing a substantial ...

Deep beneath the mountains of the Himalayas, something remarkable is taking place. The vast, rocky plate supporting India, ...

Standard coverage includes features that many companies offer only as extras. Large number of potential discounts. Cons Most consumers aren't able to get a quote online and will instead need to ...

US Geological Survey geologists estimated large potential for—and large uncertainty about—the amount of hydrogen ...