Last November, NASA's Voyager 1 sent home garbled data, and engineers traced the problem to the flight data subsystem (FDS). The problem turned out to be a single chip in the FDS memory. They couldn't repair the chip but could move the affected code into sections and store them in different parts of the FDS system. They tested the new system this week, sending signals to the Voyager 1, 22.5 light-hours away. It worked, and Voyager 1 is back.

https://blogs.nasa.gov/voyager/2024/04/22/nasas-voyager-1-resumes-sending-engineering-updates-to-earth/

NASA’s Voyager 1 Resumes Sending Engineering Updates to Earth – Voyager

@fraser

Eff yeah!

Debugging and patching software with a 44 hour latency, on hardware about as old as I am, is some next level wizardry.

I so love this.

#compSci #engineering #NASA

@fraser keeping the technology for the Voyager probes operating since the late 1970s- from afar- is nothing short of miraculous work.
@fraser @hfalcke They resurrect it just to show off who the real geeks are.
Voyager 1

Ambient drone reflecting on the journey of the Voyager probe

SoundCloud
@fraser I am so glad I don't have an HOA. A new (annoying) neighbor tried to propose one and he got a big fat finger from basically everyone.
@fraser amazing. And I can't get JavaScript to work
@fraser aliens: wtf, how did they fix that?!? What do we have to do to get rid of this thing?
@fraser The Tech Jedi skills going on here - there are just no words.
@fraser Extreme embedded development!
@jbowen @fraser and don’t forget: very remote work
@fraser Those folks are awesome

@fraser This is absolutely amazing!

Poor flatearthers with their "This is all CGI!" and "There is no space beyond the dome!". They will never experience the fascination and appreciation of science.

@fraser

🫡

Absolutely impressive

@fraser ...meanwhile, here on Earth... (and while we're at it, there's no way a single 'pole' shuts down the whole of 911 in 4 different states, that's not how it works...)

@fraser

"V'ger must evolve. Its knowledge has reached the limits of this universe and it must evolve."

@fraser hardware redundancies are so great. Makes you curious how well we're doing it in other hardware. Seems like consumer hardware has other goals.
@fraser voyager is now an experiment on long distance maintenance of long term missions. lessons we learn here will help design probes that can study extrasolar system objects and even interstellar probing someday
@fraser This is such a win for JPL, I can hardly stand it. I’m thrilled.
@fraser Reminds me of the classic XKCD
@fraser
That's amazing. 🤯

@fraser thanks, the kind of news that let me believe that perhaps we can have nice things. Some, at least.

At the limit of solar system, but still.

@fraser That is what I would love to do for work. That is what my brain was made for.