COSMIC RAYS: what is the probability they will affect a program? (Just like DNA mutations). ”
“”It depends in part on where the program is being executed and how well it’s shielded. On Earth, the cosmic ray flux is much lower than in deep space, or even near Earth orbit. The Hubble Space Telescope, for instance, produces raw images that are riddled with cosmic ray traces.”
http://stackoverflow.com/questions/2580933/cosmic-rays-what-is-the-probability-they-will-affect-a-program