nasa.gov
NASA Names Acting Leaders for Two Key Human Spaceflight Roleshttps://www.nasa.gov/news-release/nasa-names-acting-leaders-for-two-key-human-spaceflight-roles/On Thursday, NASA announced Joel Montalbano will serve as the acting associate administrator for the Space Operations Mission Directorate (SOMD) at NASA Headquarters in Washington, and Dana Hutcherson will serve as the acting program manager of the Commercial Crew Program. SOMD’s programs and activities include the Commercial Crew Program, the Commercial Low Earth Orbit Program, the Human Research Program, […]Feb 26, 2026 3:08 PM
news.ycombinator.com
Is Amazon Shipping Broken for Everyone?https://news.ycombinator.com/item?id=47166112I have recently had a whole series of amazon shipping failures. I order a set of 16 packages, got one. Talked to customer service got one again. Ordered a thing that said it would arrive on Tuesday, once I bought it, the order said Friday (+3 days). My last small order is lost in a maze of shipping status messages that are clearly fantasy. It said it was to be delivered the next day, but had not really shipped. Now seems to be lost and Amazon only can deal with delivered items. It has no option for help with items lost in delivery.My sense is that the fantasy of Amazon is now falling apart. They provide shipping status that is dishonest. Is this just an unlucky streak for me? Do they not like me anymore? Or is it for everyone?Feb 26, 2026 1:53 PM
novyxlabs.com
Show HN: Novyx – Memory API for AI agents (rollback, replay, semantic search)https://www.novyxlabs.com/Hey HN — Blake here. We built Novyx because every AI agent framework treats memory as an afterthought. Agents forget between sessions, can't search what they know, and when they make bad decisions there's no way to understand why. Novyx is a memory API for AI agents. Store observations, recall them with semantic search, and roll back when things go wrong. What it does: - Store + Recall — Semantic search over agent memories using sentence embeddings. Recency-weighted scoring, auto-linking related memories via knowledge graph. - Rollback — Point-in-time rollback with dry-run preview. Undo bad writes without redeploying. - Replay — Time-travel debugging. Reconstruct what your agent knew at any timestamp. Diff memory states between two points. Track individual memories from birth to death. - Cortex — Autonomous memory maintenance. Consolidates near-duplicate memories, reinforces frequently recalled ones, decays forgotten ones. Runs in the background. - Audit trail — Compliance-grade logginFeb 26, 2026 1:22 PM
news.ycombinator.com
Show HN: BreakMyAgent – Open-source red-teaming sandbox for LLM system promptshttps://news.ycombinator.com/item?id=47165464As a developer, I got tired of manually testing my AI agents and chatbots against the same prompt injections and jailbreaks every time I tweaked a system prompt. Our QA team was struggling with the exact same bottleneck, so I built BreakMyAgent.It’s an open-source sandbox that runs an automated barrage of standard exploits against your target LLM to see if it leaks data or ignores core instructions.How it works under the hood: - The UI is built with Streamlit, backend is FastAPI, and dependency management is handled by `uv`. - You paste your system prompt and hit run. It fires 12 baseline attack vectors (Direct leaks, XSS payloads, Context overflows, etc.) concurrently. - The core mechanic is "LLM-as-a-Judge". It uses a hardcoded `gpt-4.1-mini` with strict alignment rules to systematically evaluate the target's responses. - It supports OpenAI, Anthropic, and a solid list of open-weight models via OpenRouter (including DeepSeek V3/R1, Qwen 2.5, and Llama 3.3).There is a hosted free versFeb 26, 2026 1:00 PM
spacenews.com
CesiumAstro acquires Vidrovr to embed AI in communications systemshttps://spacenews.com/cesiumastro-acquires-vidrovr-to-embed-ai-in-communications-systems/SAN FRANCISCO – CesiumAstro announced the acquisition Feb. 26 of Vidrovr, a startup that specializes in artificial intelligence for multimodal signals analysis. Terms of the transaction, which closed in late 2025, were not disclosed. CesiumAstro acquired Vidrovr to accelerate its campaign to embed AI in space telecommunications and intelligence, surveillance and reconnaissance infrastructure, enabling radio-frequency […] The post CesiumAstro acquires Vidrovr to embed AI in communications systems appeared first on SpaceNews.Feb 26, 2026 1:00 PM
spacenews.com
China’s Tianwen-2 probe operating normally on approach to asteroidhttps://spacenews.com/chinas-tianwen-2-probe-operating-normally-on-approach-to-asteroid/China’s Tianwen-2 spacecraft is operating normally on its way to a near-Earth asteroid ahead of sampling later this year, according to a rare official update. The post China’s Tianwen-2 probe operating normally on approach to asteroid appeared first on SpaceNews.Feb 26, 2026 11:08 AM
better-hub.com
Show HN: Better Hub – A better GitHub experiencehttps://www.better-hub.com/Hey HN,I’m Bereket, founder of Better Auth. Our team spends a huge amount of time on GitHub every day. Like anyone who’s spent enough time there, I’ve always wished for a much better GitHub experience.I’ve asked a lot of people to do something about it, but it seems like no one is really tackling GitHub directly.A couple of weeks ago, I saw a tweet from Mitchell (HashiCorp) complaining about the repo main page. That became the trigger. I decided to start hacking on a prototype to see how far I could push an alternative interface using GitHub’s APIs.Within a week, I genuinely started using it as my default, same with the rest of our team. After fixing a few rough edges, I decided to put it out there.A few things we’re trying to achieve:- UI/UX rethink* – A redesigned repo home, PR review flow, and overview pages focused on signal over noise. Faster navigation and clearer structure.- Keyboard-first workflow: ⌘K-driven command center, ⌘/ for global search, ⌘I opens “Ghost,” an AI assistanFeb 26, 2026 10:08 AM
esa.int
World-first gigabit-per-second laser link between aircraft and geostationary satellitehttps://www.esa.int/Applications/Connectivity_and_Secure_Communications/World-first_gigabit-per-second_laser_link_between_aircraft_and_geostationary_satelliteFaster, more secure connections from space could one day make broadband on planes, ships and even remote roads as easy as turning on a light. The European Space Agency (ESA), Airbus Defence and Space, the Netherlands Organisation for Applied Scientific Research (TNO) and German payload manufacturer TESAT (as subcontractor) successfully connected an aircraft to a geostationary satellite using laser communications, bringing people closer to seamless, high‑speed connections in daily life.Feb 26, 2026 9:44 AM
news.google.com
New Boeing 787-9 Dreamliner Announced for Microsoft Flight Simulator 2024https://news.google.com/rss/articles/CBMijwFBVV95cUxNb1hYemthUlVOZy1yYl95VHU2eW55X1NITlRGX3ZURTN3QS1MMDJwOG82YmFsSWpzSVVZd1ZkX3BXWTd2b3Nwd0dWVVN3c0tsT0VsMm9CQl9ralJGQ3VWMTN6b2dPOFI0RW5QdzhPTGIyZWc2OXctR2tvdDVGVGxvRGZIUlJYbFJuNDRZT3FZRQ?oc=5New Boeing 787-9 Dreamliner Announced for Microsoft Flight Simulator 2024 Simulation DailyFeb 26, 2026 8:00 AM
news.ycombinator.com
Is it possible to build ithttps://news.ycombinator.com/item?id=47163195● Core: Vertically aligned monolayer graphene (electron velocity > 150\,000\text{ cm}^2/\text{Vs}). ● Interconnect layer: Nanolayer silicon (Si) to create an energy barrier (bandgap). ● Shield/Gate: Coaxial gold (Au) coating (noise shielding and instant heat dissipation). ● Base (Substrate): Synthetic single-crystal diamond (thermal conductivity > 2200\text{ W/mK}). B. Performance parameters (Estimated) ● Operating frequency: 500\text{ GHz} - 1.2\text{ THz} (vs. today's 5\text{ GHz}). ● Energy efficiency: 90\ \% power reduction compared to traditional FET design. ● Thermal Management: Capable of passive operation without the need for active coolingFeb 26, 2026 7:55 AM
github.com
Show HN: Context Harness – Local first context engine for AI toolshttps://github.com/parallax-labs/context-harnessContext Harness is a single Rust binary that gives AI tools like Cursor and Claude project-specific memory. It ingests docs, code, Jira tickets, Slack threads, and anything else into a local SQLite database, indexes them with FTS5 and optional vector embeddings, and exposes hybrid search via CLI and an MCP-compatible HTTP server.I built this because I kept hitting the same problem: AI tools are powerful but have no memory of my complex multi-repo project. They can't search our internal docs, past incidents, or architecture decisions. Cloud RAG services exist, but they're complex, expensive, and your data leaves your machine. I wanted something I could point at my sources and just run `ctx sync all`.Quick start: # Install (pre-built binaries available for macOS/Linux/Windows) cargo install --git https://github.com/parallax-labs/context-harness.git # Create config and initialize ctx init # Sync your data sources (filesystem, Git, S3, or Lua scripts) ctx sync all # Search from CLI ctx seaFeb 26, 2026 6:26 AM
github.com
Show HN: Sleeping LLM – A language model that remembers by sleepinghttps://github.com/vbario/sleeping-llmI built a system that gives LLMs persistent memory from conversations — not through RAG or databases, but by editing the model's actual weights. The knowledge lives in the parameters. The context window is empty.During wake, facts from conversation are injected directly into MLP weights via MEMIT (a single forward pass, instant recall). During sleep, the system audits which memories degraded, refreshes them with null-space constraints (guaranteeing orthogonality to working memories), then progressively transfers knowledge into LoRA — like biological memory consolidation from hippocampus to neocortex.The key problem was a hard capacity ceiling: the 8B model sustains 0.92 recall up to 13 facts, then crashes to 0.57 at fact 14 — a sharp phase transition, not gradual decay. And LoRA consolidation was blocked by what I call the "alignment tax": RLHF training fights back against injected knowledge (37% recall loss on 8B from a single LoRA pass).The fix: per-fact graduated consolidation. EachFeb 26, 2026 6:09 AM
adamschwartz.co
Show HN: Weather app with temp (23°) in faviconhttps://adamschwartz.co/weather/This is a little weather app I’ve been refining on and off for a long time. It serves two purposes for me:1) It displays the temperature in the favicon. This helps me keep track of the temp throughout the day since I keep this page always open as the left-most pinned tab in my browser.2) It shows only the information I’m typically interested in: the conditions right now and projected temperature changes over the next few hours.The data comes from https://api.weather.gov, so sadly it is US-only for now.You can get a forecast from most US cities or you can enter a specific latitude and longitude.No AI was used in the making of this site. (Not a flex, just sadly a relevant thing these days.)Feb 26, 2026 1:29 AM
spaceflightnow.com
SLS rocket hauled back to VAB for repairshttps://spaceflightnow.com/2026/02/25/sls-rocket-hauled-back-to-vab-for-repairs/A 6.6-million-pound Apollo-era crawler-transporter rolled up the ramp to pad 38B on Tuesday and was positioned directly under the 3.5-million-pound Space Launch System rocket and its 11.3-million-pound mobile launch platform.Feb 25, 2026 7:01 PM
github.com
Show HN: ATA – open-source terminal research agent for keeping up with papershttps://github.com/Agents2AgentsAI/ataResearch is moving faster than ever across every field. We built ATA to help keep up.ATA is a free, open-source fork of OpenAI's Codex CLI that adds a research stack: paper search (Semantic Scholar, arXiv, OpenAlex), citation graph traversal, PDF reading and synthesis, Hacker News discussion analysis, patent search (90+ offices via EPO), Zotero integration, and a persistent knowledge base that accumulates across sessions.We also built a reading view for long-form output — when ATA synthesizes a paper or generates a report, it opens as a navigable document with sections and foldable details instead of dumping it into chat. Follow-up questions rewrite the relevant section in place rather than appending at the bottom.Free, open source, runs locally.Try it: npm install -g @a2a-ai/atahttps://github.com/Agents2AgentsAI/ata/Feb 25, 2026 6:23 PM
github.com
Show HN: Mamba3-minimal – PyTorch implementation of Mamba-3https://github.com/VikramKarLex/mamba3-minimalHi HN,When the Mamba-3 paper dropped (currently under ICLR review), I wanted to understand how the new math actually worked. But the official implementations of these architectures usually rely on heavily optimized custom Triton/CUDA kernels. They are incredibly fast for training, but almost impossible to read if you just want to understand the matrix math.I spent the last few days reverse-engineering the paper to build mamba3-minimal: a pure-PyTorch, single-file implementation that runs natively on Mac (MPS), CPU, and CUDA.It implements the three core innovations of the paper without any C++:1. Trapezoidal Discretization & The "Shift" Hack: The new discretization rule introduces a strict sequential dependency across chunk boundaries (the beta term), which breaks standard PyTorch chunking. I managed to solve this by shifting the sequences at the global level before passing them into the chunked State Space Duality (SSD) algorithm.2. Complex-Valued SSMs (Data-Dependent RoPE): Mamba-2 faFeb 25, 2026 5:45 PM
bing.com
Your guide to mortgages and home loans with home-buying insights and mortgage lender reviews - Page 4 - Yahoo Financehttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d65d451e946278cfb6c7912c019c5&url=https%3A%2F%2Ffinance.yahoo.com%2Fpersonal-finance%2Fmortgages%2F%3Fpage%3D4&c=14137510607817250081&mkt=en-usHere's how to use a mortgage affordability calculator to help you determine how much house you can afford. The simple answer is that age discrimination in lending is prohibited. However, real life is ...Feb 25, 2026 4:53 PM
editable.website
Show HN: CMS-free in-place editable websites with Svelte (v2)https://editable.websiteAlmost 3 years ago I posted v1 here. This is v2, a complete rewrite built on Svedit, an open source rich text editor I wrote specifically for structured in-place editing.The idea is simple: The website itself becomes the CMS. There’s no admin panel. You define your content model in JavaScript and write Svelte components to render it. Once deployed the client can login and change content live on the page, create new pages, and link them up to form a website. The data is stored in SQLite. It’s fast and doesn’t require a rebuild when content changes.My goal is to make small to medium websites editable, without depending on a 3rd party system.This is likely not a good fit if you need multi-author workflows, or heavy editorial tooling.Curios to hear what you think.Feb 25, 2026 4:12 PM
github.com
Show HN: TMDD – continuous threat modelling that makes your code more securehttps://github.com/attasec/tmddMy name is Mikolaj and I built tmdd tool, a CLI that keeps an up-to-date threat model of your app (in YAML format) in your repo and generates security-aware prompts for AI coding agents. Here's why:I am a security engineer. Oftentimes I observed situations where "technical" security levels were pretty high, but the business logic and authorization related issues made the apps pretty vulnerable. In my experience, no SAST or DAST is able to spot this kind of issues; some of them might be captured during the pentests, but the pentests are time-boxed, so you never have the guarantee that everything was thoroughly analysed.That's why I decided to build this framework (name TMDD is a shortcut for Threat Modeling Driven Development, but it's more than that).How it works: 1. you init the threat model with tmdd init command - the yaml files that describe the threat model are created in your repo (either empty or from the template). 2. you load threat modeling skill into your coding agent - I teFeb 25, 2026 3:41 PM
app.teamout.com
Launch HN: TeamOut (YC W22) – AI agent for planning company retreatshttps://app.teamout.com/aiHi HN, I’m Vincent, CTO of TeamOut (https://www.teamout.com/). We build an AI agent that plans company events from start to finish entirely through conversation. Similar to how Lovable helps build websites through chat, we apply that approach to event planning. Our system handles venue sourcing, vendor coordination, flight cost estimation, itinerary building, and overall project management.Here’s a demo: https://www.youtube.com/watch?v=QVyc-x-isjI. The product is live at https://app.teamout.com/ai and does not require signup.We went through YC in 2022 but did not launch on HN at the time. Back then, the product was more traditional, closer to an Airbnb-style search marketplace. Over the past two years, after helping organize more than 1,200 events, we rebuilt the core system around an agent architecture that directly manages the planning process. With this new version live, it felt like the right moment to share it here since it represents a fundamentally different approach to planningFeb 25, 2026 2:02 PM
