180102-F-JW079-1004
A supermoon sets over the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Ohio, on the frigid morning of Jan. 2, 2018. A supermoon occurs when the full moon coincides with the moon's closest approach to Earth in its orbit as it did while a cold snap hit the Wright-Patt area with temperatures dipping to minus 10 degrees below zero. (U.S. Air Force photo by R.J. Oriez)
