The Biblical "firmament" is in reference to the fixed stars. People from ancient times knew of the constellations that do not move in contrast to the planets which do. Thus they are "firm."

A launch from Cape Canaveral from up close will show it going straight up into the sky, but elsewhere, say northwest from there while viewed from a powerful telescope, that same rocket will appear going up at a slight diagonal angle. There are ways of proving a round earth without even leaving the atmosphere. But these goofballs will point to the UN logo and claim that it's a disk with the North Pole in the center (even though that very logo shows the continents wrapping around a sphere).

The Biblical "firmament" is in reference to the fixed stars. People from ancient times knew of the constellations that do not move in contract to the planets which do. Thus they are "firm."

A launch from Cape Canaveral from up close will show it going straight up into the sky, but elsewhere, say northwest from there while viewed from a powerful telescope, that same rocket will appear going up at a slight diagonal angle. There are ways of proving a round earth without even leaving the atmosphere. But these goofballs will point to the UN logo and claim that it's a disk with the North Pole in the center (even though that very logo shows the continents wrapping around a sphere).