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I'm pretty sure that KSR mentions the possibility of some of his characters finding a chunk of Yucatan on Mars - so its perhaps not completely crazy...

Some impact events appear to have been a lot larger (and therefore presumably a lot more energy) than Chicxulub - e.g. the Vredefort Crater in South Africa

http://en.wikipedia.org/wiki/Vredefort_crater




Youza! That is a big hole. Thanks for the link, filed under "things I don't want to be near when they happen." :-)




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