Keflavík. It is caused by the electrically charged particles emitted by the sun and interacting with the Earth's magnetic field. The colliding particles cause the thin air to glow in the beautiful colors of the aurora. The lights are expected to burn even more brightly in 2011 than usual, as they approach a peak in the 11-year solar-flare cycle.
Since Iceland is in the middle of the auroral zone where this phenomenon is most frequently seen, Tim was lucky enough to have several clear, crisp nights to observe one of the most spectacular shows on this earth. One particular night the aurora was so active, the lights kept Tim awake as they danced right outside his window.