The Exploded Planet Hypothesis 2000
Evidence that Mars is a former moon
http://www.metaresearch.org/solar%20system/eph/eph2000.asp
"Especially significant in this regard is the fact that half of Mars is saturated with craters, and half is only sparsely cratered. Moreover, the crustal thickness has apparently been augmented over one hemisphere by up to 20 km or so, gradually tapering off near the hemisphere boundaries. This 'crustal dichotomy' is also readily seen in Martian elevation maps"
