Si wrote:I know that the Earth is more than 10 Km from the centre of the Sun.
I think that that is another one that should be a "believe", for most people; after all, virtually no one has measured it for themselves...we are just trusting those scientists who say that they have, and in turn most of them were trusting someone who said that the tools that they used were correct.
So it's OK to believe it's actually 10km?