Another Arctic blast has been forecast to bring frigid air to a large section of the United States later in January.

This polar projection map of Asia and North America shows the approximate terminal Pleistocene shoreline. The center of geographic distribution of Yeniseian and Na-Dene language is in Beringia.

Top: Stereographic polar projections of Titan's topography with the South Pole left and the North Pole right. Bottom: Same as above, but for a global equicylindrical projection. Regions of data ...