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.
2003
2012
1981
2019
2013
1973
1983
1971
1968
2024
2016
1978
2005