The video below is a very creative representation of what the day and night sky on Earth would look like if the earth had rings like Saturn. It is well worth a view.But it puts me in the mind of pondering the delicate balance of life on this earth and, though the artwork in the video is beautiful, I suspect that the presence of rings would dramatically alter life on this earth, perhaps even annihilate it.By way of disclaimer, let me say I am not a geologist or astronomer. But a number of things concern me about the presence of...