I’ve pondered this question for years, and despite hours of research, I can’t find a substantial theory. I imagine such a situation is nearly impossible, but the question still lingers: What sort of consequences would occur if the Earth suddenly gained a significant amount of mass?
I’ve thought of a few ideas myself, but please feel free to prove me wrong.
According to this BBC article, the Earth actually *looses * mass every year, about 50,000 tonnes annually. So perhaps if much of that original weight were gained back, we could expect to return to somewhat early Earth conditions. I certainly do not possess the intellect required to hypothesize what that might entail.
The Earth’s rotation would initially slow due to a decrease in momentum. This would significantly alter climate conditions, among other things.
The power of gravity would increase.
I’d love to hear other’s thoughts and ideas on this subject. Thanks in advance!