Quote Originally Posted by lardy View Post
Predictions can be made about where a planet will be in the sky at any given time based on what we know about their orbits.

These predictions are always correct. You can easily check it yourself on an app.
It’s not fact though it’s an assumption, like most things and these assumptions carry more weight if you believe in them.

How do they know exactly how far away the sun is for example - it’s a theory. Just because NASA says it’s 93m miles away there is no way of proving it.

Einstein had plenty of theories. Science theories are actually neither proven or disproven.