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In An Instant
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In An Instant!

November 30, 2012
Sometimes it's easy to lose a sense of scale when looking at high resolution images of the Moon - the diameter of this crater (5 km) is about the same as the distance from the steps of the Lincoln Memorial to the Capitol building. The solidified lake of impact melt in the bottom of the crater is 1200 meters (3937 ft) across! Meteor Crater (near Winslow, Arizona) is about the same size as this floor deposit. Aerial view of Meteor Crater, Arizona Credit: Photo by M. Wadhwa Studies of young impact craters by future astronaut explorers will provide key insights into a host of scientific questions, most especially about the timing of recent impacts in the Solar System and the nature of the cratering process here on Earth.


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