We don't.
We have untested theories. I would bet that they are pretty close to the truth. But I would also bet that we have a surprise or two in store.
But, what's the big deal? That's how science is done.
Space/Science » in reply to It would mean we don't understand solar system formation
We have untested theories. I would bet that they are pretty close to the truth. But I would also bet that we have a surprise or two in store.
But, what's the big deal? That's how science is done.