With the help of state-of-the-art robotic technology, archaeologists uncovered a 500-year-old shipwreck deep in the Baltic Sea that dates back to the Renaissance era.
원문출처 : https://www.cnn.com/videos/business/2019/07/22/500-year-old-shipwreck-robotic-cameras-kc-orig.cnn
원문출처 : https://www.cnn.com/videos/business/2019/07/22/500-year-old-shipwreck-robotic-cameras-kc-orig.cnn