Its radar system, called the North Warning System, monitors the North Pole every Christmas. "The moment our radar tells us that Santa has lifted off, we begin to use the same satellites that we ...

"The moment our radar tells us that Santa has lifted off, we begin to use the same satellites that we use in providing air warning of possible missile launches aimed at North America." ...

Once the radar shows he has left the North Pole, it uses special defence satellites to keep track. Its website explains: "The moment our radar tells us that Santa has lifted off, we begin to use ...

NORAD said Santa got back to the North Pole shortly after 5 a.m. EST. Santa's arrival times. Although the NORAD tracker reflected where Santa was at different points on his route around the world ...