The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

At its maximum in the Atlantic Ocean, totality during the eclipse on Jan 24, 1925 lasted 2 minutes 32 seconds—and far less on ...

They took to social media to see who else experienced the phenomenon, finding that many saw the same thing. So, what was the mysterious fireball that soared across the Tri-Cities sky last night?

The sky over L.A. has previously contained signs, and people had the good sense to heed them. Before water from the Owens Valley was brought to L.A., and Hollywood studios began to line its boulevards ...

"An asteroid this size impacts Earth on average every few thousand years and could cause severe damage to a local region," the European Space Agency said.

‘Where do you think the tallest building in America should be?’ I don’t think anyone would pick Oklahoma City,” he said. Economist Jason Barr, whose book “Cities in the Sky” comes out ...