Difference between revisions 1211334 and 1211337 on enwikiversity

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Crater astronomy
[[Image:Chain of impact craters on Ganymede.jpg|thumb|right|200px|The image shows a chain of craters on Ganymede. Credit: Galileo Project, Brown University, JPL, NASA.]]
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A '''crater''' may be any large, roughly circular, depression or hole in or beneath the rocky surface of a rocky object.
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[[Image:Yucatan chix crater.jpg|thumb|right|120px|The Chicxulub impact crater is outlined. Credit: NASA/JPL-Caltech, modified by [[w:User:David Fuchs|David Fuchs]].]]
[[Image:Aurora Borealis.jpg|thumb|right|200px|Aurora Borealis is photographed by NASA astronaut Donald R. Pettit. Credit: NASA.]]
[[Image:392171ab.eps.2.gif|thumb|
centerright|300px|The figure shows a reconstruction of the North American (Laurentian) and Eurasian plate positions in the Northern Hemisphere of Earth 214 Myr ago (Mercator projection), with the locations of the five impact structures marked. Credit: John G. Spray, Simon P. Kelley & David B. Rowley.]]
(contracted; show full)[[Category:Physics and Astronomy]]
[[Category:Planetary Science]]
[[Category:Research]]
[[Category:Research projects]]
[[Category:Resources last modified in August 2014]]
[[Category:Technology]]

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