we are the sane minority walking in a world of crazy mental people, who believe they are the normal ones. now you know how Jesus felt among the religious jews.
generally you can prove from genesis 1 that earth is all there is, and the sun moon and stars are lights in the sky, because that's exactly what it says.

for the non-believer, there is no scientific experiment ever that has proven the motion of the earth, though many have proven (by accident) its stillness.

with peace & love & faith & grace.