As Mercury closes in on its greatest elongation east (farthest from the sun in Earth's sky) on March 8, the tiny inner planet will be between Saturn and Venus close to the western horizon.

The United States needs to develop a comprehensive strategy for the Arctic. Melting sea ice is generating an emerging Arctic economy. Nations bordering the Arctic are drilling for oil and gas ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

An Arctic blast will bring dangerously cold temperatures to North Georgia early next week, with lows in the teens and 20s starting Monday, and a wintry mix of precipitation is possible on Tuesday ...

Big time weather changes by @chiefs kickoff Saturday!! An arctic front will push temperatures down to 20° with a 15+ MPH north wind. 🏈🥶 That means wind chills in the single digits are ...

Greenland, an autonomous territory of Denmark, has a history of both geopolitics and geoeconomics. Greenland lies between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. A ...

Tyler Sprague/Getty More snow will spread across the country beginning on Friday, as the Arctic blast ushers in snow squalls in parts of the Northern and Central U.S. Marc Chenard, a meteorologist ...

Texans might once again wake up to snow-covered yards this January, as another Arctic blast approaches. This time, it’s bringing subzero temperatures to parts of the state and what could be the ...

Sir Keir Starmer's visit to the presidential palace in Kyiv was met with a message from Russia when a drone was blasted out of the sky above. The prime minister was meeting President Volodymyr ...

Approval has been given for the first UK launch of a traditional "vertical" rocket. The critical clearance from the air safety regulator has taken the country a step closer to seeing its first ...

A major cold blast is in store for more than 30 states as a widespread arctic air outbreak will send nearly every American east of the Rockies into a deep freeze. This will be due to a polar vortex, ...