Project Mohole (1966) was part of the Int’l Geophysical Year, which began in the 1950s, but continued much longer. The drilling was done from a ship, because parts of the ocean floor lack the layer of crust like the one we all live on.
I read a pretty short book about it (geared to kids, which I was at the time) in school; I must have Found it in the Jr High library during one of our elementary class afternoons there, probably 3rd grade.
https://pubs.geoscienceworld.org/aapg/aapgbull/article-abstract/50/3/651/552542/Project-Mohole
https://stanfordpress.typepad.com/blog/2023/07/the-legacy-of-project-mohole.html
https://www.vox.com/unexplainable/22276597/project-mohole-deep-ocean-drilling-unexplainable-podcast
Yes; I remember it being part of a science project I did.