The BepiColombo satellite, in orbit around Mercury, photographed the rocky world's north pole for the first time up close. I ...

Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into the United States for an extended visit that is expected to provoke teeth-chattering but not be record-shattering.

Air bubbles within a deep ice core drilled in Antarctica could reveal why Earth suddenly began to experience longer ice ages ...

Batteries that power electric cars are tested rigorously in the lab and in real-world conditions before the electric vehicle ...

Antarctica is home to a peak shaped like a perfect pyramid — but contrary to what conspiracy theorists say, the mountain's ...

A spacecraft has captured detailed images of Mercury's north pole, shedding new light on the mysterious side of the planet.

The European and Japanese robotic explorer swooped as close as 183 miles (295 kilometers) above Mercury's night side before ...

Donald Trump’s announcement that he not only wants the Danish territory of Greenland but that he might use military force and ...

Arctic air remains settled over southern Colorado on Wednesday with negative morning wind chills and freezing fog giving way to chilly afternoon sunshine. Another weak snowstorm arrives Thursday.

Chile, Argentina, the U.K., Norway, Australia, New Zealand and France—maintain territorial claims on the continent.

A developing winter storm is threatening to drop snow, sleet and freezing rain on parts of Texas, Oklahoma and Arkansas ...

President-elect Donald Trump wouldn't rule out military or economic coercion, saying the U.S. needs to stop China. Also a ...