For those who don’t know what NORAD is, this website basically uses a radar system to track Santa Claus on Christmas Eve. Then there are the Santa Cams — “high-speed digital cameras pre-positioned at many locations around the world.” Click here to track him in Google Earth. Continue reading for a message from Kelly Ripa.

The moment that radar indicates Santa has lifted off, we use our second detection system. Satellites positioned in geo-synchronous orbit at 22,300 miles from the Earth’s surface are equipped with infrared sensors, which enable them to detect heat.

[via Santa]