A guy that was going to prove rockets work in a vacuum failed 3 times, he then put the rocket in a tube of air, put the tube in the vacuum chamber, rocket fired, he then said see it works, ha

There are plenty of experiments that show combustion does not work in a vacuum, even with things that have their own oxidizer.

The idea of rockets working by pushing off the combustion chamber walls is complete nonsense, the force would be pushing against all surfaces, sides front back top bottom except exit hole, thus negating any directional force.

A spinning water ball Earth in a vacuum is beyond the pale of nonsense.