Here's a familiar image you may have seen many times. But as you were settling down for that movie,did you ever notice ..that the layer of atmosphere that keeps us all alive is really very thin ??? https://videopress.com/v/YCIPxBwL?resizeToParent=true&cover=true&preloadContent=metadata&useAverageColor=true It's taken the earth about 4.5 billion years to make this precious layer of air. It's time... Continue Reading →