The Global Positioning System (GPS), developed by the U.S. military, uses a series of satellites orbiting about 12,600 miles (20,280 kilometers) above the Earth’s surface.

For instance, a person holding a GPS-enabled cell phone or having a GPS-enabled device inside a car, would be able to find out their position with the use of such systems.

Lead researcher in the study, Cathryn Mitchell, stated that GPS problems are likely to occur more frequently in the next four years or so as activities within the Northern Lights increases in strength.

She stated, "Anywhere that the aurora is visible, it will cause disruption. Although most people in the UK can't see the aurora when it is happening, because of cloud or ambient light, it can still affect the GPS signal."

Mitchell concluded, "We have just passed a minimum in activity but we are due to hit a maximum in 2012, which is when we would expect to see most disruption." [Telegraph: “GPS failing? Blame the Northern Lights”]