Niagara Falls The image shows the Niagara River that connects Lake Erie to Lake Ontario, snaking around Goat Island, in the lower left of the full image. Most of the river's water plummets over the Canadian/Horseshoe Falls, but some diverted water spills over American Falls and Bridal Veil Falls downstream. Every second, more than two million liters of water plunges over the Horsehoe Falls segment of Niagara Falls creating one of the world's largest waterfalls as well as eating away as much as two meters of rock per year. The image was acquired August 2, 2004 Tsunami strikes the coast of Sri Lanka This is a natural color, 60-centimeter (2-foot) high-resolution QuickBird satellite image featuring the southwestern coast of Sri Lanka. Imagery was collected on December 26, 2004 at 10:20 a.m. local time,slightly less than four hours after the 6:28 a.m. (local Sri Lanka time) earthquake and shortly after the moment of tsunami impact. Ground Zero, New York City This one-meter resolution satellite image of Manhattan, New York was collected at 11:43 a.m. EDT on Sept. 12, 2001 by Space Imaging's IKONOSsatellite. The image shows an area of white and gray-colored dust and smoke at the location where the 1,350-foot towers of the World Trade Center once stood. Since all airplanes were grounded over the U.S. after the attack, IKONOS ! was the only commercial high-resolution camera that could take an overhead image at the time.