| 21. | Neither the rim nor the interior are marked by impact craters of significance.
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| 22. | The relatively young, large Lofn impact crater is superposed on Adlinda.
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| 23. | The bay was formed in a 13 km wide impact crater.
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| 24. | Both the rim and interior of Rembrandt are covered by numerous impact craters.
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| 25. | The majority of Tethyan impact craters are of a simple central peak type.
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| 26. | Vitello was once believed to be a caldera rather than an impact crater.
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| 27. | Most of the bay fills a nine kilometer wide impact crater.
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| 28. | Despite preliminary searches, no impact crater has been found in the Australian outback.
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| 29. | This is one of the largest-known meteorite impact craters on Earth.
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| 30. | He is credited as a principal discoverer of the Chesapeake Bay impact crater.
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