Auroras are possible over the U.S. tonight (March 25) as a "moderate" geomagnetic storm hits Earth. The Northern Lights could ...

"The aurora does not need to be directly overhead but can be observed from as much as a 1,000 km [621 miles] away when the aurora is bright and if conditions are right," the agency explains on its ...

But what really motivates Mr Trump’s lunge for Arctic land is Greenland’s “rare earths”—a category of materials vital to ...