Originally Posted by Sol88
Per The Electric Comet Theory, the topic of this thread, comets are composed of terrestrial rock (and maybe some are made of Venusian rock)*.
So there will be granite, basalt, shale, sandstone, gneiss, even limestone, and coal. And so on.
So far, no such rock has been observed in, or on, any comet*.
Kinda makes Electric Comet Theory comets more similar to unicorns and hobbits than to whales and gums trees, wouldn’t you say?
*That’s my understanding anyway.