There is really no performance difference between carefully-written Fortran and C codes for scientific research purposes. Really none. But in terms of learning

There is really no performance difference between carefully-written Fortran and C codes for scientific research purposes. Really none. But in terms of learning and coding, Fortran is far easier to learn with a learning curve comparable to Python (but with the power of C language, again mostly for number crunching). Fortran has a wide variety of vectorization and native parallelization concepts that are extremely easy to use, something that almost no other compiled language has, at the moment.