FORTRAN programming language is more suitable for Scientific Applications.
Fortran formerly FORTRAN, derived from Formula Translation) is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing. ... Fortran's design was the basis for many other programming languages.
C++ and Python are still not as optimized as FORTRAN. I would definitely agree that FORTRAN 90/95 is the minimum. However, it is always useful to use other more modern versions. The challenge with FORTRAN is that if you learn it before you learn object oriented languages, it is easy to understand.