The essential problem is that all of us have been so thoroughly brainwashed by the satanic, freemason, nasa, "education" and "media" systems that it's only by prayer and the grace of God that we are able to approach the topic with a truly open mind.
Those who do so will be shocked to learn that not only does no proof exist for heliocentricism, but there is also no proof of globe theory, and no proof of a spinning globe, a spinning solar system, a spinning galaxy yada yada.
The PTB have made it extremely difficult to research this (and numerous other) topics. Algorithms in search engines push the narrative of the satanic system. Years ago it was easy to research FE, now you have to plow through pages and pages of "debunking" links.
Research is hindered, leaving many people in the fallback position of depending on what they "learned" in school and from movies, books, newspapers, their parents and Mr. Science Guy.
Why is this issue significant? The enemy's goal is to displace God and to minimize God and His creation. And to minimize God's plan for salvation. And to set us up to buy the lies of evolution, multiple universes, life on other planets and the coming fake, staged "alien" (demonic) invasion.