I always wondered what is on the underneath side of our Earth, if there is an underside. Do things fall downward away from the underside? How thick is the Earth's crust? Is our flat Earth hurling through space like a Frisbee or is it stationary with space circling? And we know the Moon and Sun are flat also, and they just happen to have their flat surface facing the Earth. The dark side of the Moon is actually the underneath side.