My understanding is that they sent V’Ger a command to do “something,” and then the gibberish it was sending changed, and that was the “here’s everything” signal.
And yeah, I’m calling it V’Ger from now on.
The vaginer
They specifically sent it a command to send a full memory dump after it went haywire. It wasn’t a fluke.
Sure - I didn’t know what “something” was. And what I’d read was that someone had to figure out that they were receiving a full memory dump, which suggested to me that they hadn’t specifically asked for that.
From what I read there was damage to the memory in certain places so they’ve had to move the code into spare places in memory.
It’s an astounding feat tbh.
One specific chip had damaged memory
And yeah, I’m calling it V’Ger from now on
Have my upvote.
Why haven’t we been doing this already? I’m with you, let’s make this happen!
Stop trying to make V’ger happen! Its not going to happen!
Only so long as we ensure we keep a stable humpback whale population. I don’t wanna be the guy that has to figure out how to make a temporal slingshot maneuver work.
This seems to be positive news on that front.
Are we really gonna have to have a time travel based Star Trek Movie for all the species out there to manage to get around to fixing climate change?
When I hear what they did, I was blown away. A 50 year old computer (that was probably designed a decade before launching) and the geniuses that built that put in the facility to completely reprogram it a light-day away.
I just have to imagine how interesting of a challenege that is. Kinda like when old games only had 300kb to store all their data on so you had to program cool tricks to get it all to work.
No yeah, it’s like that plus the thing is a light day away, and on top of that malfunctioning on a hardware level. Incredible
It’s like you already have a 300kb game on a cartridge, but it doesn’t work for some unknown reason. Also you don’t actually have the cartridge, some randy in Greenland does. And they only answer emails once every 2 days or so.
And the IT support service can’t even fix a computer problem of an customer 20 km away.
Meanwhile here on Earth, we need to login using two accounts to access Helldivers 2. And even got pulled from many countries. What a time to be alive.
Sony has agreed to remove psn requirements for pc users now
Keep in mind too these guys are writing and reading in like assembly or some precursor to it.
I can only imagine the number of checks and rechecks they probably go through before they press the “send” button. Especially now.
This is nothing like my loosey goosey programming where I just hit compile or download and just wait to see if my change works the way I expect…
they almost certainly have a hardware spare, or at the very least, an accurately simulated version of it, because again, this is 50 year old hardware. So it’s pretty easy to just simulate it.
But yeah they are almost certainly pulling some really fucked QA on this shit.
deleted by creator
NASA has claimed to have never written a bug in a shipped piece of code from what i can recall off the top of my head.
OTS flashing.
Like OTA but with space rather than air.
OTV (void)
If we flash our phones here on Earth, we lose our warranty, wtf
Warranty never works anyway
Let’s hope the over-the-air update didn’t get Man-In-The-Middled…
Suspect #1:
Voyager is a boomer and could more easily be phished
Gen-X
Holy shit! I forgot that I’m old now and Gen-Xers are now super-old! Yuck! I regret reading your comment and now I’m mad at the internet for the rest of the day…
You can all go suck a butt
To me, the physics of the situation makes this all the more impressive.
Voyager has a 23 watt radio. That’s about 10x as much power as a cell phone’s radio, but it’s still small. Voyager is so far away it takes 22.5 hours for the signal to get to earth traveling at light speed. This is a radio beam, not a laser, but it’s extraordinarily tight beam for a radio, with the focus only 0.5 degrees wide, but that means it’s still 1000x wider than the earth when it arrives. It’s being received by some of the biggest antennas ever made, but they’re still only 70m wide, so each one only receives a tiny fraction of the power the power transmitted. So, they’re decoding a signal that’s 10^-18 watts.
So, not only are you debugging a system created half a century ago without being able to see or touch it, you’re doing it with a 2-day delay to see what your changes do, and using the most absurdly powerful radios just to send signals.
The computer side of things is also even more impressive than this makes it sound. A memory chip failed. On Earth, you’d probably try to figure that out by physically looking at the hardware, and then probing it with a multimeter or an oscilloscope or something. They couldn’t do that. They had to debug it by watching the program as it ran and as it tried to use this faulty memory chip and failed in interesting ways. They could interact with it, but only on a 2 day delay. They also had to know that any wrong move and the little control they had over it could fail and it would be fully dead.
So, a malfunctioning computer that you can only interact with at 40 bits per second, that takes 2 full days between every send and receive, that has flaky hardware and was designed more than 50 years ago.
Is there a Voyager 1, uh…emulator or something? Like something NASA would use to test the new programming on before hitting send?
Today you would have a physical duplicate of something in orbit to test code changes on before you push code to something in orbit.
They have spare Voyager on Earth for debuggingEDIT: or not
Finally I can put some take into this. I’ve worked in memory testing for years and I’ll tell you that it’s actually pretty expected for a memory cell to fail after some time. So much so that what we typically do is build in redundancy into the memory cells. We add more memory cells than we might activate at any given time. When shit goes awry, we can reprogram the memory controller to remap the used memory cells so that the bad cells are mapped out and unused ones are mapped in. We don’t probe memory cells typically unless we’re doing some type of in depth failure analysis. usually we just run a series of algorithms that test each cell and identify which ones aren’t responding correctly, then map those out.
None of this is to diminish the engineering challenges that they faced, just to help give an appreciation for the technical mechanisms we’ve improved over the last few decades
what we typically do is build in redundancy into the memory cells
Do you know how long that has been going on? Because Voyager is pretty old hardware.
pretty expected for a memory cell to fail after some time
50 years is plenty of time for the first memory chip to fail most systems would face total failure by multiple defects in half the time WITH physical maintenance.
Also remember it was built with tools from the 70s. Which is probably an advantage, given everything else is still going
Also remember it was built with tools from the 70s. Which is probably an advantage
Definitely an advantage. Even without planned obsolescence the olden electronics are pretty tolerant of any outside interference compared to the modern ones.
Huh. If it survives a few years more, it’s a lightday away.
And you explained all of that WITHOUT THE OBNOXIOUS GODDAMNS and FUCKIN SCIENCE AMIRITEs
Oh screw that, that’s an emotional post from somebody sharing their reaction, and I’m fucking STOKED to hear about it, can’t believe I missed the news!
Why do Tumblr users approach every topic like a manic street preacher?
There’s a significant overlap between theatre kids and Tumblr users.
Thank you, now I can’t stop hearing them in Alan Tudyk’s Clayface voice from the Harley Quinn series…
That ven diagram is maybe 3 degrees away from a circle.
A Venn diagram is not a pie chart, they’re all circles.
The area where it overlaps sometimes isn’t a circle.
Like so much overlap of the two circles, it’s almost 1 circle.
Yeah, and we might use a ratio to describe that overlap, not degrees.
It’s hard to explain how significant the Voyager 1 probe is in terms of human history. Scientists knew as they were building it that they were making something that would have a significant impact on humanity. It’s the first man made object to leave the heliosphere and properly enter the interstellar medium, and this was always just a secondary goal of the probe. It was primarily intended to explore the gas giants, especially the Jovian lunar system. It did its job perfectly and gave us so many scientific discoveries just within our solar system.
And I think there’s something sobering about the image of it going on a long, endless road trip into the galactic ether with no destination. It’s a pretty amazing way to retire. The fact that even today we get scientific data from Voyager, that so far away we can still communicate with it and control it, is an unbelievable achievement of human ingenuity and scientific progress. If you’ve never seen the image the Pale Blue Dot you should see it. That linked picture is a revised version of the image made by Nasa and released in 2020. It’s part of a group of the last pictures ever taken by Voyager 1 on February 14th 1990, a picture of Earth from 6 billion kilometers away. It’s one of my favorite pictures, and it kinda blows my mind every time I see it.
The pale blue dot photo always makes me tear up. We’re so small and insignificant in such a grand universe and I’m crushed that I can’t explore it.
There will always be a “step further we’d love to see but won’t”. Let’s be glad we’re in that step which included this photo and the inherent magnificence in it.
It totally beats being one of the earlier humans who just wondered what the lights in the sky might be. Probably gods or something.
There will always be a “step further we’d love to see but won’t”
I dunno, it could be really bad out there. We like to have really romanticized versions of space exploration in our brain. Like finding I habitable planets and other intelligent life. But what if that other intelligent life is super far advanced, and also capitalists. And they figured out how to inject advertisements into brains. And they want to share their technology with us.
If they’d be super far advanced, they most likely won’t be capitalists 😁
Then we would want to see, what’s past that.
Let’s hope we figure something out before every other Galaxy moves away from us faster than the speed of light.
Man I can’t even get my stupid Azure deployment to work and that’s only in Germany.
As someone who recently switched from AWS to Azure I feel your pain.
Best part is when you finally have a working solution, Microsoft sends you an email that it’s being deprecated.
What’s wrong with AWS in your usecass?
Oh I switched jobs, so not switch as in migrate.
The industry I work in now is very conservative, so Microsoft is a brand people know and “trust”. Amazon is scary and new.
Chances are that Microsoft won management over with discounts.
I think the term “metal” is overused, but this is probably the most metal thing a programmer could possibly do besides join a metal band.
Or activate Skynet.
People always underestimate the high level NASA works at. Everyone bitches and moans, especially Musk simps, about how long SLS took to make and its expense, but it worked right the first time. In the case of the Voyager spacecraft, they are working with tech so old, all the original engineers are retired or dead. NASA rocks.
I understand your point and completely agree that NASA has produced some amazing technological feats, but we could probably use a different example than the SLS to highlight their accomplishments. Even with supposedly repurposed rocket engines and technology from the Shuttle era, that project is billions of dollars over budget and years behind schedule. If you want to highlight how amazing it is that SLS has actually flown with all the political manipulations associated with it, then I’d probably agree with you in that sense. This is no criticism of the engineers, but to completely ignore the issues of this project as a whole, not just financially related, seems to be a bit disingenuous.
Here’s a good article from Berger talking about what the Government Accountability Office thinks of the project: https://arstechnica.com/space/2023/09/nasa-finally-admits-what-everyone-already-knows-sls-is-unaffordable
The budget wasn’t really relevant to my point. And it did work correctly the first time.
All I’m saying is you could choose a better example, which NASA is full of them.
But lets say I built you a car that already came with an engine and some other important things, just to make it quicker and cheaper to get that car in your hands. Unfortunately, you want me to complete work on the car in five different states and use components from those areas. Guess what, the car is now about $5 million over budget and 5 years behind schedule. Not only that, but we encountered issues during the first test that are going to require more fixes ($$$) and more delays for the second test.
In this situation, you’re saying it’s great, it ran correctly the first time because it went down the road and back, and budgets and timelines don’t matter. I’m saying ehhhh, not really - we’re over budget by millions, delayed by years, and there were issues, even though we repurposed stuff that was in a car that actually ran a few years back. It’s great we built the car, but the project itself isn’t something that I would showcase as my best work.
I think they’re saying intellectually the work is amazing.
Ignoring all other factors they do shit right
I was already impressed when they managed to diagnose a single bit flip a few years ago.
