GEOLOGY/SETI: The moon and plate tectonics

From: Robert J. Bradbury (
Date: Thu Jul 12 2001 - 08:50:49 MDT

Interesting article at spacedaily:
  The Moon and Plate Tectonics: Why We Are Alone

It discusses the fact that the glancing collision
that produced the moon, in removing a significant
fraction of the mantle & crust, may have served to enable
plate tectonics which in turn enables the CO2 recycling
that provides a stable environment for life to evolve.

If accurate, this tends to increase the number of
water worlds and decreases the locations where life
may evolve.


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