Money spent on NASA is not a boondoggle. Much of the money goes to paying talented scientists and engineers well. Their R&D is vital to our economy.
You may be interested in this: https://spinoff.nasa.gov/
You may be interested in this: https://spinoff.nasa.gov/
There are legitimate complaints to be made about things like cost plus accounting, but the project itself isn't a boondoggle. Like, the people who greenlit it aren't idiots.
If you want to complain about boondoggles, look at the military.