NASA's Aeronautics and Space Reports for 1968 features 12 monthly reports (#38 through #49) that cover a wide variety of topics. Each of the reports is around 4 1/2 minutes long, with a longer recap in the December report.
2013
1956
1972
1965
1966
1967
1968
1991
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2021
2010
2022
2016
2008