The Big Picture: The frozen US as seen from space

A view of the frozen US from NASA's Terra satellite

Wondering why February has been so mind-numbingly cold? Here's why. NASA's Terra research satellite took a snapshot on February 19th showing that much of the US has been draped in Arctic and Siberian air masses, painting the country white with snow. Even southern cities like Macon, Georgia dipped well below freezing, according to weather reports. While those conditions are (thankfully) going away, they made for a spectacular view from space -- not that you'll likely want to see it again.