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 ...
The U.S. built a covert Cold War base under a Greenland glacier. Its secrets are now being revealed.
What the visiting journalists weren’t told—nor were many of the soldiers living at the station, which could house up to ...
National Geographic news29d
Who built the ‘lost city’ of Petra—and why did they leave?
photograph by Annie Griffiths, National Geographic Byzantine floor mosaics are found in the remains of the Petra Church. An earthquake in A.D. 363 leveled many of the city’s buildings.