And some relevant links include...

About software end of life (or not, and the 400 USD billions spent):
https://en.wikipedia.org/wiki/Year_2000_problem

Mars missions and the diffcult path to Mars:
https://en.wikipedia.org/wiki/List_of_missions_to_Mars
https://en.wikipedia.org/wiki/Mars_Climate_Orbiter
https://en.wikipedia.org/wiki/Deep_Impact_(spacecraft)#Contact_lost_and_end_of_mission

NASA report on the ICD/ICS problem:
https://llis.nasa.gov/llis_lib/pdf/1009464main1_0641-mr.pdf

About risk management (NASA):
http://csse.usc.edu/csse/event/2009/UARC/material/Macro%20Risk%20Model.pdf