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.
2017
2008
2003
1998
1968
2020
2021
NaN
1978
2014
1992
2015
2004
2009
2012
1971