Webb Telescope Captures Detailed Mid-Infrared View of Active Galaxy Centaurus A

NASA's James Webb Space Telescope used its Mid-Infrared Instrument (MIRI) to image Centaurus A, a nearby but unusually active galaxy. The image, captured on July 6, 2026, reveals dusty structures and hidden activity within the galaxy system. Centaurus A lies approximately 11 million light-years from Earth, making it relatively close by cosmic standards. Despite its proximity, it stands out from most neighboring galaxies due to its high level of activity. The MIRI observations offer new insight into the forces shaping this distinctive galactic system.

Missing One Line of Code Locked Government Staff Out of Critical Services

A developer on a government authentication engineering team discovered a subtle bug during the rollout of Multi-Factor Authentication across state service centres. The flaw caused a small subset of users — those navigating with a keyboard rather than a mouse — to receive a server error when attempting to log in. Affected staff were unable to process driver's licence applications, register vital events, or access disaster relief systems. Despite extensive testing before launch, the root cause turned out to be a single missing line of JavaScript: e.preventDefault(), which prevented the browser from bypassing the React app's authentication flow. The bug was only identified after engineers visited a service centre in person and observed users interacting with the application directly.

How to use presigned URLs for direct browser-to-bucket file uploads in Node.js

Developers building SaaS applications can improve upload efficiency by having a Node.js API generate short-lived presigned URLs, allowing browsers to send files directly to private object storage buckets without routing data through the server. This approach frees server processes from handling slow, large file transfers, which can otherwise tie up resources for several minutes per upload under concurrent load. A recommended two-bucket pattern routes browser uploads into a quarantine bucket first, where a worker validates files before copying them to durable storage, with lifecycle rules expiring unvalidated objects. The API should confirm an object's presence in storage before writing any database record, preventing orphaned entries for files that never fully arrived. For global SaaS products, running separate buckets in US and EU regions and routing uploads based on tenant records helps address data residency requirements.

Microsoft Surface Laptop with Snapdragon X2 Plus drops to $999 at Best Buy

Best Buy is offering the 2026 Microsoft Surface Laptop (13.8-inch) at $999.99, down from its original price of $1,599.99, with the deal running through July 30th. The discounted model features a 10-core Snapdragon X2 Plus chip, 16GB of RAM, and a 512GB SSD, available in black and dune colorways. The Verge recommends the 16GB configuration over the base 8GB model, citing a noticeably better Windows 11 experience and double the storage. The Arm-based laptop is noted for its strong design, long battery life, and improved performance over its predecessor. Best Buy is also running same-day deals on Nvidia RTX 5060 gaming laptops priced around $1,000 to $1,100.

Git Worktrees Offer No True Isolation for AI Coding Agents

A technical blog post published on fletch.sh highlights a key misconception about using Git worktrees with AI coding agents. The author argues that worktrees, unlike full repository clones, do not provide genuine isolation boundaries. Because worktrees share the same underlying Git repository, actions taken by an agent in one worktree can affect others. The post recommends using separate repository clones instead when true isolation is needed for AI agent workflows.

China gained planted forest cover but natural forests grew more fragmented

A new study has found that China's large-scale tree planting programmes expanded overall forest cover over three decades, adding 447,500 square kilometres of planted forest. However, researchers found that plantations frequently expanded near the edges of natural forests, leading to increased habitat fragmentation. This fragmentation disrupted connected natural ecosystems, raising ecological concerns despite the headline gains in total forest area. The study also noted a positive finding: China's Natural Forest Protection Program helped slow fragmentation within protected areas.

US Awards Lockheed Martin $58.6bn Contract to Replenish Patriot Missile Stocks

The United States government has awarded Lockheed Martin a $58.6 billion contract for the production of Patriot interceptor missiles. The deal was driven by concerns over declining missile stockpiles, particularly amid ongoing regional tensions. Under the agreement, production capacity at a key facility is set to triple, while also creating additional employment opportunities. The contract supports the US Army's long-term air defence requirements and aligns with broader Pentagon efforts to accelerate weapons manufacturing.

Study Explains Why Smoking and UV Damage Leads to Cancer in Some People

Researchers at the University of Cambridge have published findings that shed light on why DNA damage from sources like smoking and UV radiation causes cancer in certain individuals but not others. The study investigates the biological mechanisms that determine how cells respond to DNA mutations triggered by these common carcinogens. Scientists found that differences in how the body processes or tolerates such damage may explain the varying cancer risk among individuals exposed to the same hazards. The research could have significant implications for understanding personal cancer risk and potentially informing future prevention strategies.

Albie Morkel appointed head coach of Joburg Super Kings in SA20

Former South African all-rounder Albie Morkel has been named as the new head coach of the Joburg Super Kings in the SA20 league. He steps into the role following the departure of Stephen Fleming, who resigned as head coach earlier this month. Fleming had been a key figure in the franchise's coaching setup since the league's inception. Morkel, who had a notable playing career with South Africa, now transitions into a significant coaching position at the franchise level.

A Simple Prompt to Fact-Check AI Outputs Before You Repeat Them

A developer writing on DEV Community argues that AI-generated answers from tools like ChatGPT, Claude, or Gemini often contain confident but subtly incorrect details that can become the user's credibility risk when shared. The author recommends a triage approach: only verify claims you are about to act on, repeat to others, or that contain suspiciously precise specifics. For those claims, a structured "stress-test" prompt is pasted into a separate chat session, forcing the model to challenge rather than defend the original output. The prompt asks the model to restate the claim, identify what would falsify it, surface hidden assumptions, and suggest a quick human verification step. The method was demonstrated using the common claim that ORMs prevent SQL injection, which the prompt correctly flagged as oversimplified and conditionally false.

Developer builds freelance tools as single HTML files with no backend or signup

A developer has created a suite of four freelance business tools — including a rate calculator, proposal generator, contract generator, and invoice tracker — each packaged as a single downloadable HTML file. The tools require no installation, no account creation, and no internet connection, running entirely in the browser using client-side JavaScript and localStorage. The approach deliberately avoids the subscription SaaS model, where users typically hand over personal data and pay recurring fees for tools they may use only occasionally. All user data stays on the local machine, and the files are designed to remain functional indefinitely without reliance on external APIs or dependencies. The developer bundled all four tools into a 'Complete Freelance Business Kit' and acknowledged trade-offs such as no cross-device sync and no collaboration features.

How Video Rental Stores Once Served as Community Gathering Spaces

An essay published by MIT Press Reader examines the overlooked social role that movie rental stores played in local communities. Beyond simply being retail outlets, these stores functioned as informal civic spaces where neighbors interacted and shared cultural experiences. The piece reflects on what was lost when the video rental industry collapsed, largely due to the rise of streaming services. The author argues that the disappearance of these stores contributed to a broader erosion of spontaneous, face-to-face community life.

China backs India to hold 'successful' BRICS meet

Developer builds multi-project AI task system after Claude Code exposed workflow gaps

A developer working across ten projects with Claude Code found their simple per-project TODO.md system breaking down, with ideas getting lost, no cross-project prioritisation, and some projects going ignored for weeks. A Claude Code session revealed that 221 of 254 queued orders had been created by AI sessions, with the system's largest mailbox being the tooling improving itself. To address this, the developer built a centralised intake system where all ideas funnel into a single collection point before routing to individual project lists. Two automated background processes handle sorting every 15 minutes and execute approved orders every 30 minutes, deliberately without AI involvement in the sorting step. After writing an eight-section operator manual for themselves, the developer noted that any tool requiring a manual for its sole user signals how organically — and sometimes ungainly — it has grown.

JPMorgan warns dimming crypto bill prospects cloud digital asset outlook

JPMorgan has cautioned that weakening chances of the U.S. Clarity Act passing represent a significant setback for the cryptocurrency market. The bank identified the proposed market structure legislation as a key catalyst that had been supporting optimism around digital assets. Without its passage, a major regulatory tailwind for the sector could disappear. Despite this concern, JPMorgan acknowledged that tokenization efforts and growing institutional adoption of crypto continue to move forward.

Barista builds complex commerce system with AI pair-programming, uncovers 4 governance patterns

A self-taught barista with no computer science background spent six months building a vertically integrated commerce system using Vue 3, Supabase, and Claude as an AI pair-programming tool. The system manages over 14,000 files and covers everything from orders and inventory to roasting and shipping for their coffee business. Recurring bugs — all stemming from data failing to sync between write and render layers — consumed 3–5 hours each to fix, only for similar issues to resurface weeks later. A turning point came in May 2026 when, instead of patching yet another frozen UI button, the developer asked Claude to audit the entire business flow, revealing 4 completely unprotected critical nodes. The experience prompted a 9-part written series documenting the four governance patterns discovered, aimed at other solo, non-CS developers maintaining medium-complexity systems with AI assistance.

AI's hunger for data is now consuming rare books

Developer audits AI leaderboard scores, finds all ratings inflated by 6–15 points

A developer behind AGI Ranker, an AI model leaderboard platform, conducted a self-audit of its scoring methodology. The review revealed that every model's score on the platform was overstated by between 6 and 15 points. The creator shared the findings publicly on Hacker News, flagging a systemic calibration issue in how the rankings were calculated. The audit suggests that leaderboard scores in the AI benchmarking space may not always reflect true model performance. The developer appears to be working to correct the scores and improve transparency on the platform.

'My favourite Test batting partner': Kohli hails Ajinkya Rahane after retirement

US inflation slows, but relief may be short-lived