Impact Cratering

Impact Cratering - displays the classic terraced crater...

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Impact Cratering All bodies with hard surfaces have impact craters. Worlds with less volcanism or erosion or tectonic activity in their history will retain more impact craters since the planet formed. Worlds with more geological or erosional activity will have newer surfaces or craters that have been so worn away as to be unrecognizable. Earth has over 170 impact craters on its continents with the 1.2-km diameter Meteor Crater in northern Arizona being one great, well-preserved example. Even Venus with its thick atmosphere has impact craters, though they all have diameters measured in kilometers because smaller projecticles burn up in its atmosphere. The first frame of a 3D movie flyover of Tycho Crater on the Moon as seen by Kaguya. Tycho is 85 kilometers wide. It
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Unformatted text preview: displays the classic terraced crater walls and central peak of a complex crater. Select the image to go to the Selene website for a great flyover of the crater. LPI website with movie link Victoria Crater on Mars as seen by the Mars Reconnaissance Orbiter. Victoria is 800 meters in diameter. It is a simple crater that has been partially filled in with sand---note the sand dunes on its floor. If you download the full-resolution version of this picture from the link on the picture, you will be able to see the rover, Opportunity next to the top left crater rim. Cunitz Crater is the 48.5-km diameter crater in the foreground of this 3D perspective view of Eistla Regio on Venus as seen by Magellan. In the distance is the 3-km high volcano Gula Mons....
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