How a Spacecraft Like Orion Survives the Harsh Radiation of Orbit

Nothing ground-breaking in here (but at least well written for previously uninformed people) so short version:

- instead of shielding devices, build chips so they're shielded in themselves

- have 3 of each component do the same and vote on the result

- make software check its results more

Discussion of what SpaceX does with its Dragon; evidently the same thing: https://news.ycombinator.com/item?id=8746788

Did anyone catch that C.O.L.B.E.R.T. system sticker, with Colbert's face on it? Pretty great