nGen. 1:14,17 let there be lights in the firmament of the heavens to divide the day from the night;
and let them be for
signs and seasons, and for days and years.God set them in the firmament of the heavens to give light on the earth.
nSource of energy for the earth
nPs. 19:6 Its rising is from one end of heaven, and its circuit to the other end; and there is
nothing hidden from its heat.
nSun is source of energy for the earth
moving at 600K mph around center of Milky Way galaxy