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.
1993
2003
1939
2016
1946
2017
2010
1996
2004
1958
2009
1966
1943
2012
1924