>>17,19
https://www.camx.com/
https://www.nemo-ocean.eu/
https://github.com/jabirali/geneus
https://www2.mmm.ucar.edu/wrf/users/
https://www.cp2k.org/
And so on... If you search for Fortran on arXiv, there's lots of even more specific scientific software. Fortran is at the forefront of human understanding. Tons of universities teach Fortran. Just ask any of your scientist friends, it's MATLAB and Fortran.
All the big CPU vendors spend tons of effort on their high-performance Fortran compilers:
https://developer.amd.com/amd-aocc/
https://www.arm.com/products/development-tools/server-and-hpc/allinea-studio/fortran-compiler
https://www.intel.com/content/www/us/en/developer/tools/oneapi/fortran-compiler.html
The latest Fortran standard was published in 2018... Compare that to R7RS-small, which is from 2013, which language is legacy? By your standards emacs is legacy software maintained by a few unfortunate bastards... Get real. These software have their well-defined niche that they excel at. Just because you are an outsider to it does not mean that it does not exist. Fortran is extremely fast and well suited for HPC, and no amount of snarky comments about government funding will ever change that you arrogant asshole.