South Korean researchers have developed a magnetic transistor switch which may save power: http://www.nature.com/news/magnetic-logic-makes-for-mutable-chips-1.12321 I'm wondering if this could benefit space applications, but on more than just power-saving. Magnetic states aren't as easily harmed by cosmic rays, thanks to spin majorities. That's why MRAM (magnetic RAM) is good for space applications. I was then thinking that processors based on magnetic transistor switches could create a more robust system that's much more capable of standing upto the harsh radiation environment of outer space without suffering crashes and glitches that can jeopardize a space mission. Could magnetic transistors in fact be superior in higher radiation environments like space and perhaps nuclear reactors, and even near medical radiation equipment?