Time: Saturday 6/6 around 9-10pm US central time, fully dark at night. Location: Green River in Mammoth Cave National Park in Kentucky. I was camping on the banks of the Green River. with some friends this past weekend. We just set up camp maybe a few miles from the actual Mammoth Cave itself. We were sitting around a fire, and while we were talking, I looked up at the stars to my left, I think facing North. The stars weren’t that bright probably due to my eyesight adjusting from the fire lig...