You made a claim of fact. If you're going to make a claim of fact (people believe this), then you have to back yourself up. Your refusal to back yourself up shows that you have no actual reason to believe this, it's just easier for you to yell "MAGIC" at the world and pretend that it all solves itself.
The way science works, to expand on Went's final paragraph, is that there are scientific theories, countless theories, that are based around the existence of space and explain many things about our world. If you truly want to make a case for this, your job is to disprove them. I would suggest starting with scientific papers; science shows on TV aren't good enough because they don't deal with the scientific foundation, just the conclusions.
What part of the evidence in scientific papers do you disagree with?