Science is a method, not a body of knowledge. Scientifically derived knowledge is based on evidence gathered by the scientific method. These monuments are still of unknown use and origin, and lack any cultural context, but it's nice to finally see some scientific dating of them.
Sorry for getting unscientific when I meant to be ironic. It irritates me that a liberal point is always about follow the science. A massive winter cold spell shuts down multiple states as far south as Texas and we’re not allowed to say global cooling because “science” declares that it merely a weather event and not climate change. Then a spate of tornadoes hits the heart of the country and it’s not a weather event but global warming. And on. I agree that we should see accuracy, but who’s to say that 30 years from now we’ll find that science was wrong again.