What can save the desert's most tenacious birds? Tiny underground apartments.
In the vast urban sprawl of Arizona, the habitat of the tiny western burrowing owl is being destroyed—prompting ...
Discover Flagstaff, the world’s first international dark-sky city
The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...
This asteroid may hit Earth in 2032. Don't panic—scientists have a plan.
Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.
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See the Enchanting, Ancient Forest in the Middle of a Desert
To prevent further destruction of its unique bounty, the area was designated a national monument in 1906 and a national park more than a half century later. If you are traveling west on I-40 ...
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Can the Selfie Generation Unplug and Get Into Parks?
This story appears in the October 2016 issue of National Geographic magazine. At Lees Ferry, Arizona, the launch point for a raft trip down the basement of the continent, not a disheartening word ...
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Immigration Archaeology: What’s Left at Border Crossings
This story appears in the August 2018 issue of National Geographic magazine ... A border fence separates Nogales, Arizona, and Nogales, Mexico. photograph by Diane Cook, Jen Jenshel More than ...
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Night Vision—Spitzer Space Telescope
Since its launch in August 2003, says Robert Kennicutt, an astronomer at the University of Arizona, NASA's Spitzer Space Telescope "has opened up half the universe to us." In the process ...