I can speculate, but I'm really not a Heliocentric believer. I would suppose since there are seasons, the sun would be positioned at different angles, and only certain angles make the magic happen with the moon. I was looking at this recently, not sure why you didn't do a google search.
Your either a science skeptic, or a closet flat earther. That's just a guess. In any event, I like the discussion, so don't mind the dialogue.
I think for many in the science community, they need an answer that isn't Biblical, so they stick to a projection, and fill in what works, in their train of thought. Evolution is their answer for Creation, that sort of thing.
Maybe many don't believe their lying, they believe a certain way, especially if it's outside of the Biblical framework. Just because someone believes something different, doesn't mean they are intentionally lying to you. Many people are taught and believe what their professors taught them.
I remember a math class in college and out of the blue, the professor encouraged the class not to believe the Bible. It was totally at left field. It had nothing to do with the subject matter. In any event, this is what secular universities teach. My brother went to a university and he told me a professor said, the Bible isn't true. If you finish with college, more than likely you don't believe the Bible.
Now if your in the hard core sciences, this is probably driven in even harder. And if you say, you believe in the Bible, you are laughed to scorn...More than likely. So, when someone rises up out of the ranks in the science world, they teach, what they were taught, and probably believe it. To say, they are intentionally lying to you may not be entirely accurate, but maybe they believe it.