Bettmeralp, a car-free mountain village in Switzerland, transforms into a winter wonderland during the Christmas season.

In Rio de Janeiro’s summer, beaches remain full even after sunset. The city had multiple days past 40ºC (104 F) in the last ...

Skywatchers, get ready for an unforgettable weeks-long celestial spectacle.This rare phenomenon, nicknamed the ...

Generally, the nights of and near the new moon – when the moon is not illuminated – are better for most stargazing experiences. Here are the dates of new moons this year.

Homes are illuminated after the sunset in Tasiilaq, Greenland. According to data provided to Daily Kos by the government of Greenland, the U.S. has only one active exploration license on the island.

Make Greenland great again? Taking over the Panama Canal ... Following that, Musk suggested, "It's time for Trump to hang up his hat & sail into the sunset." Well, that didn't happen, did it? Instead, ...

The real question isn’t whether the U.S. should engage, but how — and whether we act before Beijing or Moscow fill the void.

The Greenland Ice Sheet is cracking open more rapidly as it responds to climate change. The warning comes in a new ...

The increased crevassing, especially prominent in fast-flowing portions of the ice sheet, could lead to a feedback loop that accelerates ice loss from the glacier, which ultimately raises sea levels.

If President Trump tries to buy or annex Greenland, he could face a competing claim from an old ally: Britain. That's ...