It's a Christmas Eve tradition that has delighted parents and children across the U.S. for 70 years now: tracking Santa Claus as he circles the globe, with the help of the North American Aerospace Def...

On the night of Christmas Eve, children across the world will be expecting a visit from Santa, after which they will wake up to find gifts under their Christmas trees.

Today, the joint U.S.-Canada command that protects the skies over both nations enlists more than 1,300 volunteers each year to answer calls from children and adults curious about Santa's whereabouts o...