So friends we are in awaits of ,how else of earth Evan taking breaths by sun light and especially , sagitarians!!All we are traditional ,about earth's temprature is belong to its gravity.But this truth is as we refered above is half truth.Becouse ,through this gravity earth become tempered, after gravit the sunlight.But gravity is not living in tempered kind.So, gravity is not dirictly responsible for temprature.Any way, some ahed.We think of days ,then for day outs there is nothing need of orbit sun.Just only, a self orbit  Evan can  put to stone in possible of days and nights.At one condition,