Supermoon brightens up the world

How close?
How close? The supermoon seen through Friday and Saturday is about 14 percent larger and 30 percent brighter than a regular full moon, according to the NASA scientists. It appears only once a year. (Tonya Traylor)

Cities around the world light up beautifully as the supermoon appeared in full on June 23, 2013. We take a look at its annual appearance.

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