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.
2016
1996
2013
1990
2011
2003
2023
2007
1973
2010
2005
2025
2014
1985
2017
2009
1972