“Ancient rivers show lack of plate tectonics on Mars and Titan”


Titan, at night
A 2005 NASA/JPL public domain image of Saturn’s moon Titan


This is more important than you might think:




Despite the earthquakes and other negatives associated with plate tectonics, the movement of Earth’s plates also contributes to the habitability of the planet.  (I’ll enlarge on that point, someday, in a much more substantial publication.  It’s scarcely original with me, but it will probably be new to many.)


Posted from Paris, France



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