Space computers and their software are always good for a surprise. Because the systems, especially for the more spectacular projects, are in development for many years, often decades, before a start can even be considered. The Verge reports.
And even from the start until the actual use, a lot of time can pass. They like to rely on tried and tested technology; but not without adding a dash of cutting edge - cutting edge early in the project, mind you.
Scriptease itself, however, has an interesting background: The whole thing started at Nombas with Cmm, which was a scripting language with C-like syntax. Only later was ECMAScript support built into the product and the software package renamed Scriptease.