By Keerthi Chandrashekar (staff@latinospost.com) | First Posted: Jul 10, 2012 03:14 PM EDT

Researchers from Aalto University in Finland have finally figured out where the sounds that accompany the northern lights are coming from. Seems that they are actually coming from only 230 feet above ground.

The team used three microphones to record the sounds, and then triangulated a position for the source of the noises.

"Our research proved that, during the occurrence of the northern lights, people can hear natural auroral sounds related to what they see. In the past, researchers thought that the aurora borealis was too far away for people to hear the sounds it made," said said Professor Unto K. Laine from Aalto University.

"This is true. However, our research proves that the source of the sounds that are associated with the aurora borealis we see is likely caused by the same energetic particles from the sun that create the northern lights far away in the sky. These particles or the geomagnetic disturbance produced by them seem to create sound much closer to the ground."

The scientists do not actually know what causes these sounds, and have only figured out where they come from. The fact that people have reported hearing different types of noise could point to several factors creating different noises.

The northern lights, or the aurora borealis, are a dazzling natural light display in the sky. Auroras are caused by geomagnetic storms in the sky.

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