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Aerial view of Meteor Crater, a bowl-shaped impact crater in northern Arizona.
Impact Crater Meteorite Impact

How Impact Craters Are Created

Impact craters form almost instantly when a meteoroid, asteroid, or comet strikes a planetary surface at extremely high speed, excavating a circular depression far larger than the object itself.

Examples: Meteor Crater (Arizona, USA), Vredefort Dome (South Africa)

Formation timescale: Rapid (hours to years)

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