Natural PhenomenonEtna Mountain Etna is Europe's most powerful volcano. With a height of 3352 meters, it dominates the eastern coast of Sicily (Map). Again and again…

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Slide 1 Paul Withers Was the formation of a 20km diameter lunar crater observed in June, 1178 AD? Journal Club, 1 February 2000 Slide 2 Acknowledgements Everyone I've…

Clark R. Chapman (SwRI), R.G. Strom, C.I. Fassett, L.M. Prockter, J.W. Head III, S.C. Solomon, M. E. Banks, D. Baker, W.J. Merline 73rd Annual Meeting of the Meteoritical…

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PowerPoint Presentation Cratering as a Geological Process Part 1： (a) Simple and complex craters; (b) Fundamental concepts of stress waves, plastic waves, and shock waves;…

Paul Withers Was the formation of a 20km diameter lunar crater observed in June, 1178 AD? Journal Club, 1 February 2000 Acknowledgements Everyone I've bugged about this,…

. . . the colonists need ice http://www.space.com/businesstechnology/technology/space_resources_031114.html Earthrise from Clementine the craters in the craters have craters…