Re: something unknown
"Earth would collapse into a smaller, red-hot glob of junk under its own gravity. "
What!? Perhaps you could explain your comment. How could a planet collapse under it's own gravity? What would generate that much gravity? Your idea needs a lot of support to get that ball rolling. I would suggest using history as a guide instead pulling silly ideas like that out of your head. Good thing you don't do anything important otherwise I'd begin to worry. Take a science class and learn something. Ditto to "P"