8,568 results for now

science.nasa.gov
NASA’s STORIE Mission to Tell Tale of Earth’s Ring Currenthttps://science.nasa.gov/science-research/heliophysics/nasas-storie-mission-to-tell-tale-of-earths-ring-current/Earth’s magnetic field is like a powerful trap. It lures electrically charged particles in space, near our planet, and snares them in an invisible, doughnut-shaped pen around Earth known as the ring current. This captive swarm of charged particles plays an important role in how Earth reacts to changing conditions in space, called space weather, which […]
May 1, 2026 3:31 PM
news.ycombinator.com
Ask HN: Macbook or Linux Laptop for devs and heavy users?https://news.ycombinator.com/item?id=47974702Hey everyone, I'm really curious to hear from people who pushes high end MacBooks and Linux laptops to their limits in daily use. I'll share my daily experience with my Linux laptop below, and I'm hoping to use the feedback from those who have been on both sides to decide if I should make the jump to a MacBook in the future. My experience: I'm a web developer doing both frontend and backend. I also do some mobile dev with Flutter. Personally, I prefer using an Android phone and a Linux machine. I'm currently using an Acer laptop with an i7-13700H and 32GB of DDR4 RAM. I got my company to buy it for way cheaper than similar models on the market. While the overall performance is really good for the price, the speakers are absolute trash and the screen is just okay. Here is what's on my mind: Even though I can get about 3-4 hours of coding done on battery, it's obviously nowhere near a MacBook. I don't really need that long battery life most of the time, but it still sounds nice to have.
May 1, 2026 1:40 PM
github.com
Show HN: A Karpathy-style LLM wiki your agents maintain (Markdown and Git)https://github.com/nex-crm/wuphfI shipped a wiki layer for AI agents that uses markdown + git as the source of truth, with a bleve (BM25) + SQLite index on top. No vector or graph db yet.It runs locally in ~/.wuphf/wiki/ and you can git clone it out if you want to take your knowledge with you.The shape is the one Karpathy has been circling for a while: an LLM-native knowledge substrate that agents both read from and write into, so context compounds across sessions rather than getting re-pasted every morning. Most implementations of that idea land on Postgres, pgvector, Neo4j, Kafka, and a dashboard.I wanted to go back to the basics and see how far markdown + git could go before I added anything heavier.What it does: -> Each agent gets a private notebook at agents/{slug}/notebook/.md, plus access to a shared team wiki at team/.-> Draft-to-wiki promotion flow. Notebook entries are reviewed (agent or human) and promoted to the canonical wiki with a back-link. A small state machine drives expiry and auto-archive.-> Per-e
Apr 25, 2026 8:53 AM
nasa.gov
NASA Releases Powerful LAVA Software to US Aerospace Industryhttps://www.nasa.gov/aeronautics/nasa-releases-powerful-lava-software-to-us-aerospace-industry/For years, NASA engineers have turned to a tool called the Launch, Ascent, and Vehicle Aerodynamics (LAVA) framework to solve airflow challenges that could mean the difference between mission success or failure. When engineers need to know how a spacecraft will navigate re-entry or whether a new aircraft wing design will create enough lift, they […]
Apr 23, 2026 4:07 PM
github.com
Show HN: BigBlueBam, MIT-licensed Work OS where agents are first-class coworkershttps://github.com/eoffermann/BigBlueBamHi HN, Eddie here. My project BigBlueBam is a self-hosted, MIT-licensed Work OS with a unified backend with native MCP, "AI as Users" rather than bolted-on chat widgets. The deploy script will stand up the full stack (local Docker container or push it to Railway) in about the time it takes to make coffee.What's live in the build: * Bam (project management/Kanban) * Banter (chat with LiveKit voice/video) * Beacon (knowledge base with a graph view) * Brief (collaborative docs) * Board (infinite canvas whiteboard) * Bolt (workflow automation) * Bearing (goals and OKRs) * Bond (CRM) * Blast (email campaigns) * Bench (analytics and dashboards) * Book (scheduling) * Blank (forms) * Bill (invoicing) * HelpdeskThe architectural bet I cared about most: MCP is the execution substrate for the whole suite, not a "feature". 340 MCP tools (and counting) registered across the apps. Agents and Bolt automations call those tools through the same registry, same auth, same data, and the MCP tools replicat
Apr 22, 2026 1:35 PM
notationchesscoach.app
Show HN: Notation – an iOS chess coach (Stockfish on device and optional BYOK)https://notationchesscoach.appHi HN. Solo iOS middle aged, slightly burnt out dad from the UK here, wondering if anyone is interested in what I've been building. Lifelong chess fan, not very good but always trying to improve and I started to build Notation: Chess coach a while back. It's been live a month now on the App Store, doing modest numbers, and I've been learning a lot... mainly make my add brain slow down, stop, test everything twice and never when tired. Submissions will always wait another day!Many people play on chess com, or lichess, just as many in apps and OTB. What my app does (differently I hope) is bring that data together.You can import PGNs of your games, connect to chess com and lichess and sync your games over or play in the app. If you have a Chessnut electronic board, you can play IRL on that as well.Every game, every move is then analysed by a series of on device detectors, and classifiers. And I'm not talking about"I run Stockfish 18 and get your move evals" like most tools do.... Theres a
Apr 22, 2026 7:46 AM
news.google.com
Celebrate International Pallas’s Cat Day with a Quiz!https://news.google.com/rss/articles/CBMickFVX3lxTE9Ib0tPMmRDR1hTU09veFlmOWh4cDFBMjRtUi1BQVVvUW56RkV3azYyVWRYS3JtVVlmOW83a1hfVUo2LTZJV3FoQTdmNjE5WDY5MEtDQTVxNC1CWHZWVnBZbm8tdHNTbGd6RGFMNDAwVkZFUQ?oc=5Celebrate International Pallas’s Cat Day with a Quiz!  snowleopard.org
Apr 22, 2026 7:00 AM
news.ycombinator.com
Instead of writing my manuscript, I built a toolhttps://news.ycombinator.com/item?id=47849297Hi my name is Jeff, and I am a chronic procrastinator when it comes to my writing…Tell me that doesn’t sound familiar, I’ve literally written two blogs about this instead of actually writing my manuscript, cause literally anything (even scrubbing the toilet) is more compelling than the grind of getting through chapter 6.I actually started writing a tool in early January 2025. At the time, I was trying to find a way to gamify my writing. I wasn’t really looking to launch a serious writing tool at the time, just find a way to hack my brain into doing the work (and find another excuse to not write).The result of that was a simple text box with a word counter (0/500 words) that used a little bit of JavaScript to count the words you dumped in the box, deduct any shorter than 3 letters and then let you know if you hit your writing goal for the day (and you even got some fireworks!)The tool worked, I found myself anticipating pasting my daily writing progress into the box for that dopamine re
Apr 21, 2026 2:25 PM
bing.com
Xbox cuts Game Pass prices but new Call of Duty games will no longer hit the service on day onehttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8a1a0593ad4911a28a6d9b3ea0b75f&url=https%3A%2F%2Fwww.engadget.com%2Fgaming%2Fxbox%2Fxbox-cuts-game-pass-prices-but-new-call-of-duty-games-will-no-longer-hit-the-service-on-day-one-163636536.html&c=505435998922999661&mkt=en-usXbox is cutting the prices of both Game Pass Ultimate and PC Game Pass, effective immediately, but there's one big caveat. First, the good news: Game Pass Ultimate now costs $23 per month, down from ...
Apr 21, 2026 10:36 AM
news.ycombinator.com
Show HN: Weekly Log, Old-school journaling social mediahttps://news.ycombinator.com/item?id=47843663Weekly Log is a minimalistic social media website designed for you to do journaling and creative writing.A lot of modern social media apps are set up in a way that addicts and detriments the users, meanwhile profiting off of their data. I really wanted to make a site that doesn't operate in that way.Some of its distinctions: - You can create one post per week. This encourages care and consideration. - Nobody knows who you follow or what posts you react to, besides you and the other user. These stats are personal, so people view your logs free of outside influence. - Posts are rich text-only, no images or videos, in an effort to reduce mental clutter. - Your feed only features users you follow, to give you increased control of what you see, unless you click the "global" checkbox to see all posts.quick demo: https://www.youtube.com/watch?v=7CTnORsGnL8 overview page: https://www.weekly-log.com/about/overview---I have soft-launched this website, and a handful of my friends have signed up a
Apr 21, 2026 2:02 AM
esa.int
Hubble turns 36 with a dazzling Trifid Nebula portraithttps://www.esa.int/Science_Exploration/Space_Science/Hubble_turns_36_with_a_dazzling_Trifid_Nebula_portraitThe NASA/ESA Hubble Space Telescope looked at a scene it first captured in 1997 in honour of 36th anniversary: a small portion of a star-forming region about 5000 light-years away in the constellation Sagittarius, known as the Trifid Nebula. The image shows changes over incredibly short timescales and instills a sense of awe and wonder about our ever-changing Universe.
Apr 20, 2026 2:00 PM
news.ycombinator.com
Observability Stack – AI First?https://news.ycombinator.com/item?id=47819461So... I'm way behind. Just got into Claude this week... it's already doing most of my coding and bug fixes. Crazy stuff.Some background on my company: Mature (14 yrs) Ruby on Rails app, Sidekiq, Redis, PG, AWS lambda/eventbridge, react/preact, swift, and others. Hosted on Heroku. Very database heavy. Solo guy, owner/operator.Current stack:Datadog logging (dabbled in APM, metrics, and others, but the build pack for Heroku is so bloated I had to remove it), so now it's a simple Heroku log drain to datadog. I really miss the statsd host and APM stuff... but it took my slug size from ~250mb to over 350 and made booting and deploys much slower. I'd also like to get off Heroku.... some day... but I can't event fathom it.Bugsnag for errors. Already moved this to Sentry to try out the AI stuff.A little fed up with Datadog and receiving $600 monthly bills on top of my enterprise commitment. biggest pain points: indexing is priced per line, not by gb (discourages me from simple logging, so I res
Apr 18, 2026 8:55 PM
app.subconscious.dev
Show HN: Co-op: Your 24/7 Digital Internhttps://app.subconscious.dev/AI is in a weird place right now. Technical people marvel over it while non-technical people don't really care.So we built Co-Op, an app specifically designed for non-technical people to run AI agents without needing a Mac Mini or laptop running 24/7. Your agents run throughout the day and complete real work across your most important apps, no code required.For me, this looks like a daily notification with my unread emails across Outlook, Gmail, and any other inbox, the weather, commute time, flight prices I'm monitoring, and the news. But it goes way beyond that. Our agents can build slideshows on Google Slides, track your finances, follow sports scores, summarize and write documents, manage your calendar, and a lot more. All running in the background without you having to constantly prompt.
Apr 17, 2026 8:05 PM
news.ycombinator.com
So_reuseaddr naming is more accurate on Windowshttps://news.ycombinator.com/item?id=47802754SO_REUSEADDR has a completely different meaning on Windows - which I did not know since I never tried it.On Linux, SO_REUSEADDR just lets you rebind a port stuck in TIME_WAIT. It WON'T allow multiple active listeners on the same port.On Windows, it is permissive. Multiple sockets CAN bind to the same address and port if they all set SO_REUSEADDR, which breaks exclusivity. Instead, we need to use the option SO_EXCLUSIVEADDRUSE.More interestingly, on macOS , it sits in between. SO_REUSEADDR can allow multiple binds under certain conditions (ask an LLM or read the man page for more on that).Same name. Different guarantees.
Apr 17, 2026 5:41 AM
spacenews.com
Artemis 2 is a benchmark in our space exploration program — and it depends on steady NASA fundinghttps://spacenews.com/artemis-2-is-a-benchmark-in-our-space-exploration-program-and-it-depends-on-steady-nasa-funding/Now that the Artemis 2 mission has been successfully completed, it’s worth taking a look at where NASA stands on the role of humans in exploring space and what its path forward should be. Doing this is especially important today, with some people questioning on line whether we can afford the cost of sending humans […] The post Artemis 2 is a benchmark in our space exploration program — and it depends on steady NASA funding appeared first on SpaceNews.
Apr 16, 2026 1:00 PM
news.ycombinator.com
Why Vibe Coding Failshttps://news.ycombinator.com/item?id=47778946i am using claude to maintain an agent loop, which will pause to ask for users' approval before important tool call. while doing some bug fixes，i have identified some clear patterns and reasons why vibe coding can fail for people who dont have technical knowledge and architecture expertise.let me describe my workflow first - this has been my workflow across hundreds of successful sessions: 1. identify bugs through dogfooding 2. ask claude code to investigate the codebase for three potential root causes. 3. paste the root causes and proposed fixes to claude project where i store all architecture doc and design decision for it to evaluate 4. discuss with claude in project to write detailed task spec - the task spec will have a specified format with all sorts of test 5. give it back to claude code to implement the fixin today's session, the root cause analysis was still great, but the proposed fixes are so bad that i really think that's how most of vibe coded project lost maintainability
Apr 15, 2026 1:50 PM
spacenews.com
Q&A: Astronaut Linda Godwin on lessons learned from Artemishttps://spacenews.com/qa-astronaut-linda-godwin-on-lessons-learned-from-artemis/Linda Godwin, a former NASA astronaut and a veteran of four space shuttle missions, knows what it’s like to spend a significant time in space. She chalked up more than 38 days in orbit. She carried out two spacewalks, becoming the first woman to do so outside two space stations with a six-hour spacewalk in […] The post Q&A: Astronaut Linda Godwin on lessons learned from Artemis appeared first on SpaceNews.
Apr 14, 2026 5:43 PM
spacenews.com
Q&A: Heather Pringle on what to expect from Space Symposiumhttps://spacenews.com/qa-heather-pringle-on-what-to-expect-from-space-symposium/The global space community is looking to build on a wave of momentum to expand its civil and national security sectors and sustain the industry’s resurgence well into the future. Heather Pringle, the Space Foundation’s chief executive officer and a retired Air Force major general, previewed the nonprofit’s annual Space Symposium, now in its 41st […] The post Q&A: Heather Pringle on what to expect from Space Symposium appeared first on SpaceNews.
Apr 13, 2026 8:59 PM
europeanspaceflight.com
ESA Publishes New Details on Crew Launch Abort Demonstratorhttps://europeanspaceflight.com/esa-publishes-new-details-on-crew-launch-abort-demonstrator/The European Space Agency has opened its call for proposals to develop a crew launch abort demonstrator, a project first announced on 28 November 2025. With the call now open, the agency has published additional information about the project, including a budget of €1 million for this initial phase of the demonstrator’s development. Officially opened […] The post ESA Publishes New Details on Crew Launch Abort Demonstrator appeared first on European Spaceflight.
Apr 13, 2026 10:30 AM
lingle.ai
Show HN: Lingle – Voice agent to simulate zoom-based personal language lessonshttps://lingle.ai/In my opinion the best way to learn a language (outside of moving to a different country) is to get a personal tutor and have consistent 1 on 1 lessons. I used Preply or iTalki for this back in the day but had issues with flexibility and pricing.I've been trying to simulate the experiences that I had on those platforms with a voice agent.You can try a demo for free here (or watch a video of me using it on the landing page):https://lingle.ai/tryout/lingle-showcaseRight now the agent can plan a lesson with visuals and a conversation focus, guides the user through the lesson - correcting and explaining things on a whiteboard if necessary, and asks relatively engaging questions. There is also a long term user model that builds over time, that maintains memory of the user's produced vocabulary, grammar, and skills, meant to make each lesson informed by the past and build on the user's knowledge (obviously this is still relatively fragile in practice).The voice agent itself has actually dece
Apr 9, 2026 10:28 PM