Fixing a 1977 Computer One Light-Day Away

On 18 November 2026 Voyager 1 becomes the first spacecraft one light-day from Earth: a hello now takes two days to answer. In 2023 its 1977 flight data computer started sending gibberish; a 'poke' made it dump its whole memory, which pointed to one dead chip, and JPL cut the code into pieces to fit the gaps that still worked. Read the story first, or test yourself straight away.