"So what experiment was done to show that the planets obeyed Newton's law of Universal Gravitation."
None that I know of. Is this a trick question?
Obviously experiments on much smaller scale have been done.
Are you saying that it doesn't hold true for planets?
Experiments showing evolution on a much smaller scale have been done.
Are you saying that it doesn't hold true for planets?
Are you saying evolution doesn't hold true for large biological changes?