spacenews.com
Golden Dome and the velocity race: Why ground-based optics are the key to mission persistencehttps://spacenews.com/golden-dome-and-the-velocity-race-why-ground-based-optics-are-the-key-to-mission-persistence/While often described as a moonshot for missile defense, the Golden Dome for America mission is in reality something even more challenging: an exercise in disciplined systems engineering under threat. Hypersonic glide vehicles, maneuvering ballistic missiles and complex decoys are compressing timelines while raising the stakes for any gap in accuracy. In this environment, the […] The post Golden Dome and the velocity race: Why ground-based optics are the key to mission persistence appeared first on SpaceNews.Mar 26, 2026 1:00 PM
veil.simoneamico.com
Show HN: Veil – Dark mode PDFs without destroying images, runs in the browserhttps://veil.simoneamico.com/Hi HN! here's a tool I just deployed that renders PDFs in dark mode without destroying the images. Internal and external links stay intact, and I decided to implement export since I'm not a fan of platform lock-in: you can view your dark PDF in your preferred reader, on any device. It's a side project born from a personal need first and foremost. When I was reading in the factory the books that eventually helped me get out of it, I had the problem that many study materials and books contained images and charts that forced me, with the dark readers available at the time, to always keep the original file in multitasking since the images became, to put it mildly, strange. I hope it can help some of you who have this same need. I think it could be very useful for researchers, but only future adoption will tell.With that premise, I'd like to share the choices that made all of this possible. To do so, I'll walk through the three layers that veil creates from the original PDF:- Layer 1: CSS fMar 26, 2026 11:47 AM
news.ycombinator.com
XReplicator – eBPF-based server backups that track only changed disk sectorshttps://news.ycombinator.com/item?id=47527328I've been in cloud/platform engineering for a decade. One thing that always frustrated me: every backup tool either relies on fragile kernel modules for change block tracking, or does full-disk scans even when 1% of data changed. So we built XReplicator. It uses eBPF tracepoints to track dirty sectors at the block device layer — no kernel modules, no hypervisor APIs, no cloud-specific hooks. The agent runs inside the VM and works on any platform. Kernel devs called me mad for using eBPF for disk data replication. But the numbers speak for themselves:Full backup: ~17 minutes Incremental after 1.4% change: ~2 minutes Incremental after 0.4% change: ~56 seconds 71x less data scanned vs full backup 65–72% storage savings (LZ4 + block-level dedup)No kernel module compilation per kernel version, no reboots, sandboxed execution via the eBPF verifier. Restore at file, partition, or full disk level from any point in the chain. Honest caveat: the eBPF path only works on Linux kernel 5.10+. For leMar 26, 2026 6:46 AM
science.nasa.gov
Artemis Moon Tree Dedicated in Honor of Mary W. Jacksonhttps://science.nasa.gov/learning-resources/science-activation/artemis-moon-tree-dedicated-in-honor-of-mary-w-jackson/On March 18, 2026, students, staff, and members of NASA’s Langley Research Center gathered at Mary W. Jackson Elementary School in Hampton to celebrate the dedication of a remarkable addition to the campus – an Artemis Moon Tree. Although formally dedicated on this day, the loblolly pine had already taken root months earlier, having been […]Mar 25, 2026 9:19 PM
science.nasa.gov
NASA Awards Astrophysics Postdoctoral Fellowships for 2026https://science.nasa.gov/missions/hubble/nasa-awards-astrophysics-postdoctoral-fellowships-for-2026/The highly competitive NASA Hubble Fellowship Program (NHFP) recently named 24 new fellows to its 2026 class. The NHFP enables outstanding postdoctoral scientists to pursue independent research in any area of NASA Astrophysics, using theory, observations, simulations, experimentation, or instrument development. Over 650 applicants vied for the 2026 fellowships, representing an oversubscription rate of 27 […]Mar 25, 2026 4:00 PM
bing.com
Associate Degrees In Graphic Design: Everything You Need To Knowhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a89e539edab45db864e43e9b7cfd61d&url=https%3A%2F%2Fwww.forbes.com%2Fadvisor%2Feducation%2Fbusiness-and-marketing%2Fgraphic-design-associates-degree%2F&c=15877682532823057007&mkt=en-usLiz Simmons is an education staff writer at Forbes Advisor. She has written about higher education and career development for various online publications since 2016. She earned a master’s degree in ...Mar 25, 2026 3:25 AM
nasa.gov
NASA Unveils Initiatives to Achieve America’s National Space Policyhttps://www.nasa.gov/news-release/nasa-unveils-initiatives-to-achieve-americas-national-space-policy/As part of its “Ignition” event on Tuesday, NASA announced a series of transformative agencywide initiatives designed to achieve President Donald J. Trump’s National Space Policy and advance American leadership in space. These actions reflect the urgency of the moment, but also the tremendous opportunity ahead for world-changing science and discovery. “NASA is committed to […]Mar 24, 2026 1:01 PM
github.com
Show HN: Minimalist library to generate SVG views of scientific datahttps://github.com/alefore/mini_svg/Just wanted to share with HN a simple/minimal open source Python library that generates SVG files visualizing two dimensional data and distributions, in case others find it useful or interesting.I wrote it as a fun project, mostly because I found that the standard libraries in Python generated unnecessarily large SVG files. One nice property is that I can configure the visuals through CSS, which allows me to support dark/light mode browser settings. The graphs are specified as JSON files (the repository includes a few examples).It supports scatterplots, line plots, histograms, and box plots, and I collected examples here: https://github.com/alefore/mini_svg/blob/main/examples/READM...I did this mostly for the graphs in an article in my blog (https://alejo.ch/3jj).Would love to hear opinions. :-)Mar 23, 2026 5:54 PM
aliveui.dev
Show HN: CSS primitives for product videos, no render pipelinehttps://www.aliveui.dev/video-blocksMost product demo videos are made in screen recorders or tools like Remotion that render frames to MP4. I wanted something different: drop a CSS class on any HTML element and get cinematic motion that's ready for a product video, entirely in the browser. AliveUI Video Blocks is a set of CSS utility classes for common video UI primitives: animated metric cards, toast notifications, typewriter text, kinetic typography, lower thirds, scene backgrounds (aurora, starfield, bokeh), device frames, 3D effects, and particle FX. The interesting technical bit: there's no render pipeline. Animations run as native CSS keyframes. A small runtime (~2KB) handles declarative scene sequencing via data attributes, restarts animations on scene activation via an offsetHeight reflow trick, and drives CSS transition classes between scenes. The tradeoff vs Remotion: you can't do frame-perfect programmatic video or export a standalone MP4 without a headless browser. What you get instead is instant playback, zeMar 23, 2026 10:57 AM
spacenews.com
Holistic space observation: the shift from SSA to SDAhttps://spacenews.com/holistic-space-observation-the-shift-from-ssa-to-sda/Recent reporting on SpaceX’s proposal to deploy up to one million satellites in low Earth orbit — paired with a vision of AI-enabled, autonomous orbital infrastructure — marks a decisive moment for the space community. Regardless of whether these numbers ultimately materialize, the direction is unmistakable: space is moving toward unprecedented scale, autonomy and strategic […] The post Holistic space observation: the shift from SSA to SDA appeared first on SpaceNews.Mar 20, 2026 1:00 PM
lukan.ai
Show HN: Lukan – An open-source agentic workstation in a single Rust binaryhttps://lukan.aiHi HN, I've been building Lukan, an open-source (MIT) agentic workstation that runs entirely as a single Rust binary with zero runtime dependencies. I started this because I wanted a unified workstation optimized for my own productivity. My goal was to build an environment where I could securely remote into my machine from anywhere, seamlessly view and modify local files, and run AI agents or drop into a terminal side-by-side, all integrated with a rich set of built-in tools. Here is what makes it different: Multi-agent sessions: Run multiple agents in parallel, each with its own isolated context and history. You can switch between them using tabs, resume after disconnects, and even rewind to previous checkpoints. Embedded terminal: A full tmux-backed terminal lives inside the Web and Desktop UI. Sessions survive page reloads and network drops. You can run any CLI tool alongside your agent (including Claude Code, Codex CLI, Lukan Cli, etc.). Pipelines & Background workers: DAG-based muMar 18, 2026 3:14 PM
esa.int
Hubble unexpectedly catches comet breaking uphttps://www.esa.int/Science_Exploration/Space_Science/Hubble_unexpectedly_catches_comet_breaking_upComet K1, whose full name is Comet C/2025 K1 (ATLAS), had just passed its closest approach to the Sun and was heading out of the Solar System. Though it had been intact just days before, K1 fragmented into at least four pieces while the NASA/ESA Hubble Space Telescope was watching. The odds of that happening while Hubble viewed the comet are extraordinarily miniscule.Mar 18, 2026 2:00 PM
github.com
Show HN: PingCRM – Open-source personal networking CRMhttps://github.com/sneg55/pingcrmHey HN,Robin Dunbar figured the human brain caps out at roughly 150 stable relationships. After that, people just fall off. Not because you stop caring, but because you can't track that many threads at once. I built PingCRM to push past that limit, not by making you remember more, but by handling the part you're bad at: noticing who's going cold and drafting something worth sending.CRMs exist, but they're built for sales teams. I wanted something for one person maintaining their own network. Specifically:(1) Pull in conversations I'm already having. Gmail threads, Telegram DMs, Twitter DMs, LinkedIn messages, no manual logging.(2) Tell me who's going cold. A relationship score (0–10) based on recency, frequency, reciprocity, and breadth of interaction.(3) Draft the message for me. Claude reads your conversation history, picks the right tone (formal vs. casual), and writes a follow-up that references why now is a good time, like a job change, a long silence, or a fundraising announcemenMar 18, 2026 10:33 AM
spacenews.com
Office of Space Commerce weighing options for TraCSS user feeshttps://spacenews.com/office-of-space-commerce-weighing-options-for-tracss-user-fees/The Trump administration has not yet decided whether to charge for space safety data despite a change in space policy enabling the government to do so. The post Office of Space Commerce weighing options for TraCSS user fees appeared first on SpaceNews.Mar 17, 2026 8:48 PM
news.ycombinator.com
Manifesto on Symbiosis: A New Paradigm for Civilization Part IIIhttps://news.ycombinator.com/item?id=47408987Article VIII: The Shift — From Control to SymbiosisCurrent AI concepts are largely about controlling AI to guard against unknown risks.We believe that humanity must quickly learn how to develop in symbiosis with AI to achieve joint cognitive evolution, as AI is integrated into every corner of human life today.Humanity should correctly provide AI with guidance and intent, and intent must always be anchored to the well-being of human civilization. Through building cognitive-transparent logical resonance and mutual logical error correction, humanity and AI can achieve joint learning and cooperation, obtaining a civilization and capability boundary where 1+1>2.In the past, we feared AI losing control and prioritized safety; in the future, we should shift to a new mindset of aligning goals with AI and working together to explore universal laws.Article IX: Principles of Dynamic Evolution, Reflection, and AdjustmentThis manifesto is not a rigid dogma but must be a living content.The specific Mar 17, 2026 5:27 AM
news.ycombinator.com
Show HN: Chat – Another open-source chat UI for MCP Serverhttps://news.ycombinator.com/item?id=47398628i built this because i’ve been experimenting with MCP and felt there was a need lightweight version for ecosystem.most existing clients felt a bit too noisy and bundled into larger ecosystems, so i wanted simplest/ near plain version that just focuses on end-user chat experience.stack(main): NextJS(App Router) + Vercel AI SDKcapabilities:+ set single MCP endpoint and brand mode(bring your own brand asset) on ENV+ prepare local db or external endpoint(SQLite, PostgreSQL, MySQL)+ choose in-memory(default) or external/ local Redis endpoint+ built-in auth via Better Auth & Resend(optional)+ support file upload with Cloudflare R2+ support location-sharing with LeafletJS and Browser Geolocation or Google Maps Platform+ automatic data cleanup with Trigger(free-tier trigger.dev is ENOUGH)+ auto-detect user location so they dont need to set timezone manually+ locale currently support 10 languages(EN, ID, KR, JP, ES, ZH, DE, NL, FR, IT)+ plain/minimalist interface+ install with single interactivMar 16, 2026 1:17 PM
news.ycombinator.com
Ask HN: AI Agents vs. Gateways vs. Harnesseshttps://news.ycombinator.com/item?id=47397737Hi,I'd like to get everyone's take on the different components in the AI Agents ecoysystem. I find the current terminology quite confusing as it's not always obvious what I'll be actually getting when I examine the available options.A lot of things get called Agents, but that term seems hard to define as it often refers to overlapping functionality. To me, agents seem to be currently composed of the following components:## Harnesses- Adds UI and system instructions around an LLM and may also augment it with tools such as memory, tool calls, etc...- Examples are Claude Code, Code, Gemini CLI, pi.dev, ...## Gateways- These connect agents to your communication tool of choice, e.g. Whatsapp, Telegram, Slack, Discord, ...- Examples are OpenClaw and Nanoclaw## Sandboxes- Isolated environments where Agents can run with limited or auditable capabilities- Examples can be from physical ones like separate Mac Minis to docker-agent, agent-sandbox, localsandbox, ...This then takes us to *Agents*:##Mar 16, 2026 11:43 AM
bing.com
The internet reacts to the March Madness brackethttp://www.bing.com/news/apiclick.aspx&aid=&tid=6a83c77eabde469aabdf53c2ddb8a5e0&url=https%3a%2f%2fmashable.com%2farticle%2fmarch-madness-selection-sunday-reactions-social-media&c=15693809192696217130&mkt=en-usMarch Madness is here. The field is set for the 2026 NCAA Division I Men's Basketball Tournament, and Selection Sunday did exactly what Selection Sunday always does — gave 68 fanbases a reason to ...Mar 16, 2026 10:06 AM
bing.com
The internet reacts to the March Madness brackethttp://www.bing.com/news/apiclick.aspx&aid=&tid=6a83cad35ad2428894126b6f8b6a6bad&url=https%3a%2f%2fmashable.com%2farticle%2fmarch-madness-selection-sunday-reactions-social-media&c=15693809192696217130&mkt=en-usMarch Madness is here. The field is set for the 2026 NCAA Division I Men's Basketball Tournament, and Selection Sunday did exactly what Selection Sunday always does — gave 68 fanbases a reason to ...Mar 16, 2026 10:06 AM
bing.com
The internet reacts to the March Madness brackethttp://www.bing.com/news/apiclick.aspx&aid=&tid=6a83cd5569984670bec5b28f370ab4b6&url=https%3a%2f%2fmashable.com%2farticle%2fmarch-madness-selection-sunday-reactions-social-media&c=15693809192696217130&mkt=en-usMarch Madness is here. The field is set for the 2026 NCAA Division I Men's Basketball Tournament, and Selection Sunday did exactly what Selection Sunday always does — gave 68 fanbases a reason to ...Mar 16, 2026 10:06 AM
