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chrislgarry/Apollo-11

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Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.

111 mentions on Hacker News by 100 people: 35 stories, 76 comments · first 2016-07-05 · latest 2026-10-08

Mentions per year 111 mentions · busiest year 2016 (26)
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  1. https://github.com/chrislgarry/Apollo-11 : > Original Apollo 11 guidance computer (AGC) source code for Command Module (Comanche055) and Lunar Module (Luminary099). Digitized by the folks at Virtual AGC and MIT Museum. Other Moon things of…
    comment by westurner · 2026-10-08 · in Margaret Hamilton has died
  2. …computers didn't have much program or data storage space. The source code can be found on GitHub: https://github.com/chrislgarry/apollo-11
    comment by cbm-vic-20 · 2026-10-08 · in Margaret Hamilton has died
  3. …Hamilton did not join until '65), but as far as I can tell the twitter poster is simply wrong: https://github.com/chrislgarry/Apollo-11/blob/master/Comanch... > # MOD NO. 00 BY M.HAMILTON DEC.12, 1966 https://www.ibiblio.org/apollo/Document…
    comment by ChickeNES · 2026-10-08 · in Margaret Hamilton has died
  4. https://github.com/chrislgarry/apollo-11
    comment by dudewhocodes · 2026-10-08 · in Margaret Hamilton has died
  5. https://github.com/chrislgarry/Apollo-11/blob/master/Comanch... I feel like "BEWARE"... is, given the context, what we would now likely call "load-bearing" COMPTGO EXTEND # USED TO COMPUTE TTOGO QXCH PHSPRDT6 # ** GROUP 6 TEMPORARY USED ..…
    comment by buredoranna · 2026-07-22 · in Original Apollo 11 Guidance Computer source code for command and lunar modules
  6. …at the time. Like any random file you open contains little pragmatic design decisions like this https://github.com/chrislgarry/Apollo-11/blob/master/Comanch... # THE POSITION OF THE MOON IS STORED IN THE COMPUTER IN THE FORM OF # A NINTH…
    comment by wim · 2026-07-22 · in Original Apollo 11 Guidance Computer source code for command and lunar modules
  7. It does, although that's not what's being talked about.. the related repo is: https://github.com/chrislgarry/Apollo-11 The repo you linked is from 2009 (211 points, 58 comments) https://news.ycombinator.com/item?id=715395
    comment by gnabgib · 2026-04-19 · in Apollo 11 code open-sourced by NASA – Command Module and Lunar Module code repos
  8. …I HOPE HOPE HOPE CADR STOPRATE # TEMPORARY, I HOPE HOPE HOPE TC DOWNFLAG # PERMIT X-AXIS OVERRIDE https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by buredoranna · 2026-04-07 · in We found an undocumented bug in the Apollo 11 guidance computer code
  9. If it's not a joke, I think it was already digitized: https://github.com/chrislgarry/Apollo-11
    comment by ivanjermakov · 2025-05-22 · in How we made our OCR code more accurate
  10. …most others missed, and won the competition by a hair! There’s also the incredible joy of seeing https://github.com/chrislgarry/Apollo-11 and quipping “this is a Unix system; I know this!” Knowing how to read the language of how we made it…
    comment by btown · 2025-02-22 · in FFmpeg School of Assembly Language
  11. …system. There was no wasting of CPU cycles. We even have the source code on GitHub to go look at: https://github.com/chrislgarry/Apollo-11 Look in this assembly code. It is imperial. https://github.com/chrislgarry/Apollo-11/blob/master/Lumi…
    comment by firesteelrain · 2024-12-03 · in Student rocket group shatters amateur space record
  12. …not used by the Minuteman - does anyone know? https://en.wikipedia.org/wiki/Kalman_filter#History https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by djmips · 2024-08-21 · in The guidance system and computer of the Minuteman III nuclear missile
  13. …system was one of the first production deployments of Kalman filters. Here's the source code: https://github.com/chrislgarry/Apollo-11/blob/master/Luminar... (it was used for star navigation, not sure about the lander).
    comment by dekhn · 2024-06-26 · in Chang'e 6 lunar sample return mission returns with samples from moon's far side
  14. …assembly code imaginable, sometimes the syscall called by your assembly is really unsafe code: https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by btown · 2024-02-29 · in Memory Safe TLS Library Now Has AWS Crypto and FIPS
  15. I often like to think about https://github.com/chrislgarry/Apollo-11 as an analogy. It's public domain with available source, in the assembly language in which it was written... so it fills all the definitions of OSS! But the process by…
    comment by btown · 2024-01-31 · in Mistral CEO confirms 'leak' of new open source AI model nearing GPT4 performance
  16. …codeless code (based on real code [1] from Apollo 11). [0] http://thecodelesscode.com/case/234 [1] https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by voiceblue · 2024-01-08 · in The curious case of the Raspberry Pi in the network closet (2019)
  17. …Frequency 2.048 MHz Memory 15-bit wordlength + 1-bit parity 2048 words RAM (magnetic-core memory) https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by jpm_sd · 2023-12-13 · in Can a transformer represent a Kalman filter?
  18. "Burn Baby Burn" might be even more apt! https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by Kim_Bruning · 2023-11-05 · in SpaceX poised for 'mid-November' launch of second Starship test flight
  19. …of assembly has been hand-crafted." I, too, look in awe at what was achieved with such things as https://github.com/chrislgarry/Apollo-11/tree/master/Luminar... . But that software, per https://en.wikipedia.org/wiki/Apollo_Guidance_Computer…
    comment by btown · 2023-10-23 · in Software disenchantment
  20. Not Voyager but here’s code from the Apollo program: https://github.com/chrislgarry/Apollo-11/
    comment by TaylorAlexander · 2023-10-21 · in NASA's Voyager Team Focuses on Software Patch, Thrusters
  21. …to the last— as permanent as aught upon this sphere— while overhead, a vacant moon flies past. https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by shagie · 2023-01-20 · in Google to reduce workforce by 12k
  22. …help but remember the comments in the Apollo-11 source code saying "TEMPORARY, I HOPE HOPE HOPE". https://github.com/chrislgarry/Apollo-11/blob/a13539c7c5c482...
    comment by resonious · 2023-01-16 · in We invested 10% to pay back tech debt
  23. Something that immediately comes to mind is https://github.com/chrislgarry/Apollo-11#readme . Of course, this is an earlier generation. But if the commenter is correct that VS Code is one of the greatest pieces of engineering of our time,…
    comment by btown · 2022-12-16 · in Atom was archived today
  24. Not mind blowing, but calling a subroutine BURNBABY in your moon launch code is just great. https://github.com/chrislgarry/Apollo-11/blob/a13539c7c5c482...
    comment by jvm___ · 2022-11-01 · in Ask HN: What piece of code/codebase blew your mind when you saw it?
  25. https://github.com/chrislgarry/Apollo-11/blob/a13539c7c5c482... My mind was blown that I could read Apollo 11 source code. It was additionally blown that it included comments like, "# TEMPORARY, I HOPE HOPE HOPE"
    comment by SeanAnderson · 2022-11-01 · in Ask HN: What piece of code/codebase blew your mind when you saw it?
  26. The source code is available on GitHub along with a virtual version you can play with. - https://github.com/chrislgarry/Apollo-11 - https://www.ibiblio.org/apollo/
    comment by itsjustjordan · 2022-08-08 · in The Apollo On-Board Computers
  27. …modules from the 1960s is also pretty wild [2] [1] https://www.seanriddle.com/furbysource.pdf [2] https://github.com/chrislgarry/Apollo-11
    comment by jamal-kumar · 2022-06-28 · in Some Assembly Required: An approachable introduction to assembly
  28. Man, imagine hating fun even more than old school NASA engineers, the stereotypical anti-fun people. https://github.com/chrislgarry/Apollo-11/blob/cb0da994bb6834... https://github.com/chrislgarry/Apollo-11/blob/cb0da994bb6834... And if…
    comment by NikolaeVarius · 2021-03-03 · in Godot maintainer removes controversial satirical piece from documentation
  29. …used. Probably the highest level of safety would pertain to situations like the Apollo 11 mission https://github.com/chrislgarry/Apollo-11 But there are other situations where you don’t need such a high level of software safety. eg when…
    comment by j7ake · 2020-12-29 · in The Three Levels of Software Safety
  30. …about it), and similar research languages aren't. Once upon a time programming looked like this. https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by jcelerier · 2020-10-01 · in C++ the Good Parts (2014)
  31. >NUMERO MYSTERIOSO https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by ryanmarsh · 2020-02-19 · in Apollo 11 Guidance Computer source code for the command and lunar modules
  32. >TEMPORARY, I HOPE HOPE HOPE https://github.com/chrislgarry/Apollo-11/blob/master/Luminar... ...it was not temporary
    comment by bensochar · 2020-02-19 · in Apollo 11 Guidance Computer source code for the command and lunar modules
  33. Wow, was "burn baby burn" really part of the original source code?! https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by davidw · 2020-02-19 · in Apollo 11 Guidance Computer source code for the command and lunar modules
  34. …consistent between systems. > that's some impressively old code to find on GitHub You may like https://github.com/chrislgarry/Apollo-11
    comment by pjc50 · 2019-11-21 · in A Mystery of Unix History
  35. …the IGNITION subroutine in the BURN_BABY_BURN module of the Apollo AGG source code does it for me: https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by endymi0n · 2019-10-28 · in Ask HN: What is the most beautiful piece of code you've ever read?
  36. …are amazing. Not to mention I have zero idea what the assembly code or even the math is doing. from https://github.com/chrislgarry/Apollo-11/blob/master/Luminar... # SINCE WE WILL FIND THE MODE 1 SHAFT ANGLE LATER, WE CAN FIND THE MODE 1…
    comment by nodesocket · 2019-07-21 · in The (Surprisingly Funny) Code for the Apollo Moon Landings Is on GitHub
  37. Some of the issues are funny too: https://github.com/chrislgarry/Apollo-11/issues?utf8=%E2%9C%...
    comment by jpindar · 2019-07-20 · in The (Surprisingly Funny) Code for the Apollo Moon Landings Is on GitHub
  38. …which has the original guidance computer source code for the command and lunar modules[0]. [0] https://github.com/chrislgarry/Apollo-11
    comment by _eric · 2019-07-15 · in Apollo 11 Had a Hidden Hero: Software
  39. The source code for the Apollo guidance Computer is available on GitHub. https://github.com/chrislgarry/Apollo-11
    comment by raimue · 2019-06-16 · in Apollo 11 in Real Time
  40. https://github.com/chrislgarry/Apollo-11/blob/master/Luminar... Code seems to use SI, but imperial in comments.
    comment by garaetjjte · 2019-05-14 · in Apollo 10 Stopped Just 47k Feet from the Moon
  41. …anyone interested in the process of compiling and loading the code for these systems (available at https://github.com/chrislgarry/Apollo-11/ ) into the "core rope memory" used for program storage in the capsules, here's one of the original…
    comment by btown · 2019-01-22 · in Diskee: Apollo's Most Important Crewmember
  42. The AGC source code is up on Github these days https://github.com/chrislgarry/Apollo-11/
    comment by ForHackernews · 2019-01-22 · in Diskee: Apollo's Most Important Crewmember
  43. …any bugfix. Think about the Apollo-11 code [0] - one tiny bug and astronauts might be dead. [0]: https://github.com/chrislgarry/Apollo-11
    comment by piotrkubisa · 2019-01-03 · in A thread for Junior Developers/Engineers
  44. If you care to understand the code I pasted, here's the full listing: https://github.com/chrislgarry/Apollo-11/blob/master/Comanch...
    comment by newnewpdro · 2018-12-27 · in Please do not attempt to simplify this code
  45. My favorite part from that: https://github.com/chrislgarry/Apollo-11/blob/27e2acf88a6345...
    comment by luhn · 2018-12-27 · in Please do not attempt to simplify this code
  46. If you want to see actual code that flew to the Moon: https://github.com/chrislgarry/Apollo-11
    comment by userbinator · 2018-12-27 · in Please do not attempt to simplify this code
  47. I would wait until this is resolved before contributing: https://github.com/chrislgarry/Apollo-11/pull/324 It's very likely to be a non-issue, but then again it might be (if it is not public domain..)
    comment by craftyguy · 2018-10-05 · in Ask HN: What are some great retro computing projects to contribute to?
  48. You can help transcribe the code from the original Apollo Guidance Computer: https://github.com/chrislgarry/Apollo-11
    comment by RandomGuyDTB · 2018-10-05 · in Ask HN: What are some great retro computing projects to contribute to?
  49. I don't think it's the oldest by a longshot, but check this one out, from the Apollo 11 software: https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
    comment by TremendousJudge · 2018-09-18 · in Atari 7800 Source Code
  50. …are very, very complex. [1] https://qz.com/726338/the-code-that-took-america-to-the-moon... [2] https://github.com/chrislgarry/Apollo-11 [3] https://www.quora.com/How-many-lines-of-code-is-Facebook
    comment by alangpierce · 2018-07-29 · in Signaling in tech is some fucked up shit (2016)