Old code - New Loops

I just found by chance in the NASA web page (HERE) that they have been running a model named ROCKE-3D that:

"...calculates the details of the orbit of any planet around its star. This has been modified from the original Earth model so that it can handle any kind of planet in any kind of orbit, including planets that are "tidally locked,"..."

The model (code) can be found HERE.

My first approach to FORTRAN was during my BSc in Physics, in 1996. NASA still uses it, and for very modern purposes (so to speak).