Reply to post: Tectonics ... d'oh!

Alien Earths are out there: Our home is not 'unique'

GaryB_

Tectonics ... d'oh!

You missed Uranium! W/o internal radioactive decay, the earth would cool and tectonics stop. The continents and other material would wear down, minerals disperse, magnetic core would solidfy and fade and the planet would die w/o the recycling services provided by plate tectonics provided by the heat engine of radioactive decay. You must mix in some radioactive material, but not too much!

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