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Mapping Monsters: SDSS-V Data Release 20 Unveils All-Sky Views of Supermassive Black Holes

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🚀 Discover this trending post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: The Black Hole Mapper reaches a milestone with its first southern hemisphere optical observations, coordinated eROSITA X-ray identification, and multi-epoch tracking of accreting black holes across the universe. APACHE POINT OBSERVATORY, NM & LAS CAMPANAS OBSERVATORY, CHILE — The Sloan Digital Sky Survey (SDSS) announces Data Release 20 (DR20), marking a landmark expansion in the study of accreting supermassive black holes (SMBHs). As part of the fifth generation of the survey (SDSS-V), the Black Hole Mapper (BHM) program is providing unprecedented insights into the masses,…

defaultRoute() with several default routes (fixes #2) by miraholt31 · Pull Request #3 · ancaferro/myNetwork · GitHub

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🚀 Discover this awesome post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Fix full-scan hang on multi-homed hosts: defaultRoute() with several default routes (fixes #2) by miraholt31 · Pull Request #3 · ancaferro/myNetwork · GitHub TIMESTAMPS The Wayback Machine - https://web.archive.org/web/20260731053721/https://github.com/ancaferro/myNetwork/pull/3 Conversation Multi-homed hosts (wired + wifi up simultaneously) list several 'default via ...' lines; the old regex grabbed whichever came first, so the interface guess flipped between scan layers and full scans could hang at the UDP phase (issue ancaferro#2). - parse every default line, sort by metric like the kernel does - expose parseLinuxDefaultRoutes() for…

NASA figured out how to keep its 48-year-old Voyager 2 probe running for yet another year

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💥 Read this insightful post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: NASA just made an interstellar tweak to the Voyager 2 spacecraft, known as the "Big Bang", to keep its remaining 50-year-old science instruments running a little longer.Voyager 2 and its twin launched in 1977, called Voyager 1, rely on a form of nuclear battery known as a radioisotope thermoelectric generator that uses the heat produced by the decay of plutonium. But the supply of plutonium on each probe drops at about four watts a year on each spacecraft.To keep the probe running on this dwindling…

The Nixpkgs core team has disbanded – Nixpkgs Core Team

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✨ Read this awesome post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: The Nixpkgs core team has unfortunately decided to disband. We’re proud to have had the opportunity to lead by example in bottom‐up, consensus‐focused governance for Nixpkgs, and of our achievements over the past 10 months, including reforming the committer delegation process and onboarding 19 new committers, empowering maintainers by extending the merge bot, re‐establishing contact with GitHub and securing the sponsored Enterprise Cloud upgrade, helping triage GHSA-67f2-674w-6g63 and track the GitHub security risks exposed by that incident, and establishing an initial automation/AI policy, as well…

Managing AI Coding Costs at Scale

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💥 Read this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: AI coding tools deliver immense value: at Databricks, agentic coding has measurably improved every velocity metric we track and, in some teams, driven an order-of-magnitude gains in output. But nearly every company deploying AI tools at scale has hit the same wall: exponentially growing costs. That curve is unsustainable - left unchecked it will eventually overtake revenue. The spend explosion has left enterprises in a paradoxical situation: on the one hand, desiring to maximally push AI transformation and put powerful tools in the hands of…

xoreaxeaxeax/asm-hall-of-shame: Racing to the bottom of CPU performance · GitHub

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💥 Read this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Instruction latency analysis usually focuses on performance optimization—making code run as fast as possible. The Assembly Hall of Shame takes the opposite approach: searching for the absolute floor of single-instruction performance. 🏆 Current Champions 🏆 Strategy: Use fxrstor64 to load 512-byte FPU/MMX/XMM state from a high-latency MMIO region in the PCIe fabric, then starve the fabric while the load is in flight — a fleet of hammer cores pounds a different high-latency MMIO register with tight 4-byte reads, saturating the PCIe root complex and endpoint…

Ancient Library — Read the Greek & Latin Classics in the Original

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✨ Read this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: A complete parsing reader for the classical canon. Click any word in any text for its lemma, morphology, and full dictionary entry — Lewis & Short for Latin, Liddell-Scott-Jones for Greek. 1060 works · 293 Latin · 767 Greek · 140 authors · browse the full A–Z index Latin EpicThe great narrative poems of Rome.23 worksLyric & ElegyCatullus, Horace, and the Roman elegists.42 worksTragedySeneca’s tragedies.10 worksComedyPlautus and Terence.26 worksHistoryCaesar, Livy, Sallust, Tacitus.16 worksBiographyLives of the Caesars and famous men.68 worksOratory & RhetoricCicero and the art…

Water system controllers don’t belong on the internet, says ex-NSA chief after suspected Iran attacks

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🔥 Discover this trending post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Security Calling all defenders With at least 12 US states’ water systems having been hacked - most likely by Iran - we have to get better at cyber defense, according to retired General and Ex-NSA chief Paul Nakasone, who was speaking to reporters at DEF CON.“We have to have higher standards,” Nakasone said. “These PLCs should not be connected to the internet.”In late July, the FBI said it was investigating attacks conducted by “malicious cyber actors” targeting operational technology devices, including programmable logic controllers (PLCs).…

xoreaxeaxeax/REpsych: Psychological warfare in reverse engineering · GitHub

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💥 Discover this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: : Psychological Warfare in Reverse Engineering github.com/xoreaxeaxeax/repsych // domas // @xoreaxeaxeax The REpsych toolset is a proof-of-concept illustrating the generation of images through a program's control flow graph (CFG). A typical function's CFG A REpsych generated CFG There is no specific point to the project (other than to show that it can be done), but possible (non-serious) applications are outlined in the DEF CON presentation. The program works reliably with all tested versions of the IDA Pro reverse engineering tool, and semi-reliably with other CFG…

Daring Fireball: App Store Rejection of the Week: Dark Hours

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🚀 Check out this awesome post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Friday, 7 August 2026 Terry Godier, “Browsers Have Standards, the App Store Has Judgment”: A while ago I tried to submit an iOS app for Dark Hours, my astronomy website for normal people. It was rejected on the grounds that it was astrology. It has no tarot function, no horoscopes, and nothing that I, or anyone else I’ve asked, would associate with astrology. I penned a nice little rant two years ago expressing my fury over the way that kooks promoting astrology often try…