[CarolinaGuitarman]

"So you don't think it's a proven fact that a spaceship can orbit the earth?"

It's a fact, but there was never a *theory if space ships could orbit the earth*. There was the Theory of Orbital Mechanics, for which our being able to orbit a ship around the Earth is a great boost but it doesn't prove the Theory of Orbital Mechanics. Our confidence in the theory is excellent, but it can never be 100%. The only thing things that can be proved are certain mathematical theorems. Then only because all the premises are defined exactly. No theory in science has that luxury.

[kjam22]

Our confidence in the theory is excellent, but it can never be 100%.

So are you saying that you are not 100% certain that a space ship can orbit the earth?