I can assure you they didn't. Edit: Check this 1993 document by NASA: "National security and national competitiveness: Open source solutions; NASA requirements

I can assure you they didn't. Edit: Check this 1993 document by NASA: "National security and national competitiveness: Open source solutions; NASA requirements and capabilities" https://books.google.fi/books?ei=8YMJVZ6-IIOhPaj8gMAO&id=zYQ4AQAAIAAJ&dq=%22open+source%22&focus=searchwithinvolume&q=%22open+source%22 https://books.google.fi/books?ei=8YMJVZ6-IIOhPaj8gMAO&id=zYQ...