American Indians were very careful scientists. They learned important facts about objects in the sky and used them to tell time, to predict the changes of the seasons, and to use maps. Today, American Indian scientists help us learn more about the sky and galaxy. In fact, (Lakota) Native Americans have known for thousands of years that there was a black hole located through the center of the bowl in the big dipper. NASA discovered it just a few years ago.
(via baapi-makwa)