Satellite image: Capitol crowd

More than one million people gathered in the US capital to see Barack Obama sworn in as America's 44th president.

The event was captured by the Earth-imaging satellite GeoEye-1 which took these pictures of from an altitude of 423 miles (680 km). The picture on the left was taken in December and shows an empty National Mall; to the right you can see the vast swarms of people who turned out to see the inauguration.

National Mall in Washington

Photo by GeoEye Satellite Image

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