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Monday, September 25, 2017

Huge space rocks could have helped start Earth’s plate tectonics

gettyimages-556920799-800x500.jpg

Nobody knows how or why plate tectonics got started on Earth. But new evidence suggest collisions with space rocks millions of years ago may have something to do with it

from # All Medicine by Alexandros G. Sfakianakis via alkiviadis.1961 on Inoreader http://ift.tt/2fkKQUd

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