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This Day in Environmental History: August 20, 1977 US launched Voyager 2, unmanned spacecraft carrying a 12-inch golden record of "The Sounds of Earth."#envhist #environmentalhistory #History #OTD #tdih #histSTM #historyofscience #ThisDay pic.twitter.com/pDpJ45HVNd
— USFWS History (@USFWSHistory) August 20, 2020