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■ Hidden Earth Part 1 - On the shores of Cosmos The northernmost islands of the West Sea, Baengnyeong Island, Daecheong Island, and Socheong Island hold the entire record of the Korean Peninsula from 1 billion years ago. It traces the story of how cyanobacteria first began photosynthesis, revolutionizing the ocean and atmosphere and changing the history of life and civilization when there was no oxygen on Earth. The oxygen revolution of small bacteria is depicted in the footsteps of fishermen who harvest seaweed and mussels under the rock of Socheong Island and catch three-year-old sea cucumbers, drawing a map of life and the sea of Cosmos that continues to our breathing today. ※ This video is [KBS Grand Project Hidden Earth 3 Billion Years of the Korean Peninsula - On the shores of Cosmos] that aired on March 2, 2023. #Environment #Documentary #KBS