The Meteor Crater in AZ 1
by Susanne Van Hulst
Title
The Meteor Crater in AZ 1
Artist
Susanne Van Hulst
Medium
Photograph - Photography
Description
The object that excavated the crater was a nickel-iron meteorite about 50 meters (54 yards) across, which impacted the plain at a speed of several kilometers per second. Impact energy has been estimated at about 10 megatons. The speed of the impact has been a subject of some debate. Modeling initially suggested that the meteorite struck at a speed of up to 20 kilometers per second (45,000 mph), but more recent research suggests the impact was substantially slower, at 12.8 kilometers per second (28,600 mph). It is believed that about half of the impactor's 300,000 metric tons (330,000 short tons) bulk was vaporized during its descent, before it hit the ground.
The impactor itself was mostly vaporized; very little of the meteorite remained within the pit that it had excavated.
Uploaded
April 8th, 2012
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