You seem to forget I have been wrong about many things - Mostly I was wrong when I used to chortle about how gravity waves would be found no later than the late nineteen eighties.
I monitor the gravity probe sites at least weekly, and always read papers that prove dark matter exists - so far, by reasserting dark matter is the difference between the motion we observe, and what Newtonian mechanics predict.
And I got this one right:
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Originally Posted by The messenger (Jerry)
endogenic - natural composition of the crust of Iapetus.
The cratering tells us the surface is ancient. The shallow depth of the craters suggest a resilient surface. I get to guess the light side is also dark, but spattered with ices: Either Iapetus took a backside graffiti hit from Enceladus (unlikely) or there was a recent thermal event on the front face that boiled-off most of the ice deposited in the last hundreds of millennia, exposing the moon's native surface.
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