Around 1960 there seemed to be a lot of interest in “Project Mohole”. I remember reading about it in “My Weekly Reader”.
I think it was going to drill through the earth’s crust and discover what was inside. I think it was somewhere in the Caribbean.
It sort of died out without so much as a whimper.
I think everyone knows there is a crust, mantle and core. he question is if there are bacteria that live on emissions from the mantle.
I remember my father telling me about Project Molehole. Yes it went away without so much as a whimper, perfect description.
As for the other comments on here...the humor on FR; one of the things I love about it, lol!
Project Mohole and a later Russian attempt that achieved an even greater depth both died “without a whimper” because funding was cut.