A full moon rises behind the obelisk in Buenos Aires, capital of Argentina, March 19, 2011. The world saw a super moon on Saturday night as the moon passed the earth at the distance of around 360,000 kilometers, the closest in the past 19 years. [Xinhua/Martin Zabala]

A full moon rises over Washington D.C., capital of the United States, March 19, 2011. The world saw a super moon on Saturday night as the moon passed the earth at the distance of around 360,000 kilometers, the closest in the past 19 years. [Xinhua/Zhang Jun]