
** FILE ** People embrace by the ancient stone circle of Stonehenge, in southern England on the annual Winter Solstice, in this Friday, Dec. 21, 2012, file photo. British researchers on March 9, 2013, have proposed a new theory for the origins of Stonehenge: It may have started as a giant burial ground around 3,000 B.C. (AP Photo/Matt Dunham, File)

** FILE ** People embrace by the ancient stone circle of Stonehenge, in southern England on the annual Winter Solstice, in this Friday, Dec. 21, 2012, file photo. British researchers on March 9, 2013, have proposed a new theory for the origins of Stonehenge: It may have started as a giant burial ground around 3,000 B.C. (AP Photo/Matt Dunham, File)

** FILE ** People embrace by the ancient stone circle of Stonehenge, in southern England on the annual Winter Solstice, in this Friday, Dec. 21, 2012, file photo. British researchers on March 9, 2013, have proposed a new theory for the origins of Stonehenge: It may have started as a giant burial ground around 3,000 B.C. (AP Photo/Matt Dunham, File)

** FILE ** Tech. Sgt. Brandon Longcrier uses white sage to consecrate a pagan worship area on the hill overlooking the Cadet Chapel and the Visitor Center at the Air Force Academy in Colorado Springs, Colo., just after sunrise on the winter solstice, Dec. 21, 2009. Sgt. Longcrier is the pagan lay leader at the academy. (U.S. Air Force photo/Staff Sgt. Don Branum)

** FILE ** Tech. Sgt. Brandon Longcrier uses white sage to consecrate a pagan worship area on the hill overlooking the Cadet Chapel and the Visitor Center at the Air Force Academy in Colorado Springs, Colo., just after sunrise on the winter solstice, Dec. 21, 2009. Sgt. Longcrier is the pagan lay leader at the academy. (U.S. Air Force photo/Staff Sgt. Don Branum)

In a photo provided by NASA the Washington Monument is seen as the full moon is shadowed by the Earth during a total lunar eclipse on the arrival of the winter solstice, Tuesday, December 21, 2010 in Washington. From beginning to end, the eclipse lasted about three hours and twenty-eight minutes. (AP Photo/NASA/Bill Ingalls)
A photo provided by NASA shows the total lunar eclipse as the full moon is shadowed by the Earth on the arrival of the winter solstice, Tuesday, Dec. 21, 2010 in Arlington, VA. From beginning to end, the eclipse will last about three hours and twenty-eight minutes. (AP Photo/NASA/Bill Ingalls)