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.
2018
2019
2016
2020
2015
2002
2021
2003
1994
2006
2011
1983
1981
2014
2013