| http://www.w3.org/ns/prov#value | - Stud??ies based on cli??mate mod??els have sug??gested that cat??a??stroph??ic events such as as??ter??oid im??pacts could have cre??at??ed warm, wet con??di??tions on Mars, caus??ing del??uges and flood??ing for per??i??ods of hun??dreds to thou??sands of years.
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