science.nasa.gov
To See the World in a Grain of Sand: Investigating Megaripples at ‘Kerrlaguna’https://science.nasa.gov/blog/to-see-the-world-in-a-grain-of-sand-investigating-megaripples-at-kerrlaguna/Written by Athanasios Klidaras, Ph.D. candidate at Purdue University On Mars, the past is written in stone — but the present is written in sand. Last week, Perseverance explored inactive megaripples to learn more about the wind-driven processes that are reshaping the Martian landscape every day. After wrapping up its investigation at the contact between […]Aug 21, 2025 8:07 PM
news.ycombinator.com
GoDaddy misrepresented my $95,000 domain purchase (evidence inside)https://news.ycombinator.com/item?id=44970782Yesterday I acquired a premium .ai domain through GoDaddy’s brokerage service for USD 95,000. Their written statements do not align with the reality of the transaction.What GoDaddy told me (in writing):“No commission fees are involved in this transaction.”“The only charges from GoDaddy will be the domain registration fee and the domain price as listed by the seller.”“The seller’s final asking price [was] USD 95,000.”What I paid: USD 95,298.98 (95,000 domain + 298.98 registration) by American Express credit card.The problem: American Express withholds ~3% in merchant fees. Unless GoDaddy itself covers that fee (unlikely), the seller cannot have received USD 95,000.After the purchase, a GoDaddy manager told me on the phone that “the price of the domain seller is between GoDaddy and the domain seller.” This directly contradicts their earlier written statements that the seller’s final asking price was USD 95,000 and that the only charges from GoDaddy were registration plus the seller’s priAug 21, 2025 9:35 AM
news.ycombinator.com
Ask HN: Do you use the chat "Share" link as a save/load snapshot?https://news.ycombinator.com/item?id=44969763i noticed something simple that’s been surprisingly useful. most chat UIs have a Share button. if you treat that shared link as a snapshot of the current state, you can later paste the link and reload the exact tuned persona/config without re-priming. feels like “save slot” for AI chats.how i use itquick start: 1) tune until behavior is right → 2) press Share, copy link → 3) paste next time to boot the same stateworks for: ChatGPT, Gemini, Claude, Perplexity, Groknot true snapshots (in my tests): Mistral, Kimi (their “share” seems to export text, not state)why it helpsreproducibility for A/B prompts and evalfaster incident response for RAG/OCR/agent pipelines (no re-tuning)stable voice for long-form writing or T2I workflowssafe red-team vs blue-team comparisons in parallel tabsopen questions for HNhave you observed state fidelity differences across providers? which ones actually restore the same behavior?any known privacy or retention pitfalls with shared links? do teams treat them as Aug 21, 2025 6:41 AM
nasa.gov
X-ray and Radio go ‘Hand in Hand’ in New Imagehttps://www.nasa.gov/image-article/x-ray-and-radio-go-hand-in-hand-in-new-image/In 2009, NASA’s Chandra X-ray Observatory released a captivating image: a pulsar and its surrounding nebula that is shaped like a hand. Since then, astronomers have used Chandra and other telescopes to continue to observe this object. Now, new radio data from the Australia Telescope Compact Array (ATCA), has been combined with Chandra’s X-ray data […]Aug 20, 2025 7:18 PM
nasa.gov
NASA to Announce New Astronaut Class, Preview Artemis II Moon Missionhttps://www.nasa.gov/news-release/nasa-to-announce-new-astronaut-class-preview-artemis-ii-moon-mission/NASA is opening media accreditation for multi-day events to introduce America’s newest astronaut class and provide briefings for the Artemis II crewed test flight around the Moon. The activities will take place in September at the agency’s Johnson Space Center in Houston. After evaluating more than 8,000 applications, […]Aug 20, 2025 7:16 PM
bing.com
Modular Construction Hits 9% Of Multifamily Starts — And That's Just The Beginninghttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d979fcea4422fb8584bca64124e26&url=https%3A%2F%2Fwww.bisnow.com%2Fnational%2Fnews%2Fconstruction-development%2Fmultifamily-developers-with-congressional-support-are-ready-to-bring-modular-mainstream-130652&c=15532919277951014110&mkt=en-usResia’s latest apartment complex in Florida opened with a twist: Its kitchens and bathrooms were manufactured 500 miles away in Georgia. The vertically integrated developer is among a growing cohort ...Aug 20, 2025 1:54 PM
stix-v1.onrender.com
Show HN: STIX – Institutional positioning in US equities revealed as a scorehttps://stix-v1.onrender.comHi HN — I built STIX, a tool that calculates a simple 0–100 score for US stocks and ETFs. The score describes whether the ticker is institutionally sponsored and thusly primed for higher pricing. It’s meant to help active traders decide what to lean into—and what to avoid.What it is: STIX produces a per-ticker score for US equities and ETFs, plus sector and market aggregates, updated daily. Higher and rising scores suggest stronger structural support; lower and falling scores suggest potential distribution or fragility. It’s not a price predictor—think of it as a distilled view of where larger players appear to be accumulating or distributing risk.Why I built it: Most trading tools surface signals that are incredibly complex to understand and require a lot of subjective interpretation. I wanted a positioning-centric tool that simply and concretely expressed to users whether a stock had a higher probability of appreciating or deteriorating.How it works (high level): Each day STIX ingestAug 20, 2025 4:56 AM
science.nasa.gov
Curiosity Blog, Sols 4631-4633: Radiant Ridge Revolutionhttps://science.nasa.gov/blog/curiosity-blog-sols-4631-4633-radiant-ridge-revolution/Written by Remington Free, Operations Systems Engineer at NASA’s Jet Propulsion Laboratory Earth planning date: Friday, Aug. 15, 2025 Today we uplinked a three-sol weekend plan with lots of exciting activities — to support both the science and engineering teams! While usually our science activities take front and center stage, we often also do engineering […]Aug 19, 2025 6:40 PM
science.nasa.gov
Sun at the Center: Teacher Ambassadors Bring Heliophysics to Classrooms Nationwidehttps://science.nasa.gov/learning-resources/science-activation/sun-at-the-center-teacher-ambassadors-bring-heliophysics-to-classrooms-nationwide/For the fourth year in a row, the American Association of Physics Teachers, a collaborator on the NASA Heliophysics Education Activation Team (HEAT), selected eight new educators to serve as ambassadors for heliophysics education. Meeting in Boulder, CO, from July 14-17, 2025, these teachers met to work through AAPT’s lessons that bring physics content to […]Aug 19, 2025 4:46 PM
nasa.gov
Moonlight and Our Atmospherehttps://www.nasa.gov/image-article/moonlight-and-our-atmosphere/The Moon’s light is refracted by Earth’s atmosphere in this April 13, 2025, photograph from the International Space Station as it orbited into a sunset 264 miles above the border between Bolivia and Brazil in South America. Understanding the Moon helps us understand other planets, how they have evolved and the processes which have shaped […]Aug 19, 2025 2:51 PM
bing.com
Yalova'da istihdam garantili Fiber Tekne İmalatı ve Kompozit Kalıp Teknolojileri Programı'na 30 öğrenci alınacakhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8cac2096de407db1cab4c876b53e47&url=https%3A%2F%2Fwww.msn.com%2Ftr-tr%2Fhaber%2Fegitim%2Fyalovada-istihdam-garantili-fiber-tekne-%25C4%25B0malat%25C4%25B1-ve-kompozit-kal%25C4%25B1p-teknolojileri-program%25C4%25B1na-30-%25C3%25B6%25C4%259Frenci-al%25C4%25B1nacak%2Far-AA1KN5Ts&c=11727925322844253430&mkt=en-usYÖK'ün Yalova Üniversitesi Çınarcık Meslek Yüksekokulu bünyesinde açtığı Fiber Tekne İmalatı ve Kompozit Kalıp Teknolojileri Programı, istihdam garantili eğitimiyle 30 öğrenciyi birçok sektörün ...Aug 19, 2025 1:52 AM
bing.com
Justin Jefferson glad to be “feeling great” and on track for Week 1http://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d2a8540ca48ff848997df08cc518b&url=https%3A%2F%2Fwww.nbcsports.com%2Fnfl%2Fprofootballtalk%2Frumor-mill%2Fnews%2Fjustin-jefferson-glad-to-be-feeling-great-and-on-track-for-week-1&c=17152103424024392189&mkt=en-usVikings wide receiver Justin Jefferson made a long-awaited return to practice on Monday. Jefferson hurt his hamstring on the second day of training camp and remained on the sideline until taking his ...Aug 18, 2025 11:59 PM
youtube.com
Show HN: We started building an AI dev tool but it turned into a Sims-style gamehttps://www.youtube.com/watch?v=sRPnX_f2V_cHi HN! We’re Max and Peyton from The Interface (https://www.theinterface.com/).We started out building an AI agent dev tool, but somewhere along the way it turned into Sims for AI agents.Demo video: https://www.youtube.com/watch?v=sRPnX_f2V_c.The original idea was simple: make it easy to create AI agents. We started with Jupyter Notebooks, where each cell could be callable by MCP—so agents could turn them into tools for themselves. It worked well enough that the system became self-improving, churning out content, and acting like a co-pilot that helped you build new agents.But when we stepped back, what we had was these endless walls of text. And even though it worked, honestly, it was just boring. We were also convinced that it would be swallowed up by the next model’s capabilities. We wanted to build something else—something that made AI less of a black box and more engaging. Why type into a chat box all day if you could look your agents in the face, see their confusion, and watch wheAug 18, 2025 6:51 PM
bing.com
Dylan Robinson Is Another UW Freshman Unwilling to Waithttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d1092f72a4d4ba82251d6e602ad32&url=https%3A%2F%2Fwww.si.com%2Fcollege%2Fwashington%2Ffootball%2Fdylan-robinson-is-another-uw-freshman-unwilling-to-wait-01k2zh5wxqf6&c=738794750265390811&mkt=en-usWhen the pads came on for the University of Washington football team in fall camp, so did the intensity for Dylan Robinson. Early in the third practice, the 6-foot-3, 195-pound freshman cornerback ...Aug 18, 2025 3:27 PM
phofee.com
Show HN: Phofee – Photography social platform built with Svelte 5https://phofee.com/Hello everyone! For the past few months I have been working on Phofee, a social platform for sharing high quality photos.The goal: Make a website that allows users to easily upload, share, and discover photos without having to sacrifice quality or mangle their images.Phofee allows users to upload multiple images of varying aspect ratios. All sub images in a single post are displayed in a small photo gallery, so all your photos can be seen at a glance.One of Phofee's unique features is the automatic extraction of photo metadata. When a user uploads a photo, metadata such as Camera Model, Lens, Aperture, ISO, and shutter speed are displayed under your photo. This way, other photographers can gain better insight into your creation process and learn from it.For this project, I took privacy very seriously. - All metadata is deleted from user's photos before posting. - We store minimal user information. - We don't store user passwords (by using Google OAuth). - We don't use Google Analytics.Aug 18, 2025 1:18 PM
bing.com
The Indo-Pacific Is Like the Cold War, But Not in the Way Most Thinkhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d111363c64f078eb524e1526adc27&url=https%3A%2F%2Fthediplomat.com%2F2025%2F08%2Fthe-indo-pacific-is-like-the-cold-war-but-not-in-the-way-most-think%2F&c=17390069573536122010&mkt=en-usThe navies of Australia, Japan, the Philippines, and the United States conducted a Maritime Cooperative Activity in the South China Sea, Apr. 7, 2024. Credit: U.S. Navy Photo by Mass Communication ...Aug 17, 2025 9:18 PM
news.ycombinator.com
Ask HN: Does Microsoft gain anything from the constant annoying rebranding?https://news.ycombinator.com/item?id=44930297I know no company or business in history that had the amount of rebranding that Microsoft did, initially I thought that the product manager there might have had an identity crisis, and he/she will be leave the position at some point and this it will be over. But this practice does not seem to end ever, which made me wonder if it is a company policy and it actually helps the business growth. Does any one of you know any possible business use to such intensive rebranding?Some of you might have not dealt with many Microsoft products so you might have not experienced examples of what I am talking about, so to name a few: * Azure Active Directory → Microsoft Entra ID (maybe the most horrible one of them) * Microsoft Threat Protection → Microsoft 365 Defender * Microsoft Defender Advanced Threat Protection → Microsoft Defender for Endpoint * Office 365 Advanced Threat Protection → Microsoft Defender for Office 365 * Azure Advanced Threat Protection → Microsoft Defender for Identity Office prAug 17, 2025 9:48 AM
news.ycombinator.com
Bitcoin: The HEIST OF THE CENTURY – Is it a credible scenario?https://news.ycombinator.com/item?id=44926596Once upon a time, there was a U.S. President who loved crypto.He wanted to build the world’s first Bitcoin Reserve.But… he couldn’t just buy BTC with public money. Too risky politically.So he asked his advisors:“What’s the best way to grow America’s Bitcoin stash?”Ideas flew across the room:“Launch more fraud investigations.” “Tax transactions and buy BTC with the proceeds.” “Use our energy to mine it.” “Seize it legally.”At that last suggestion, Trump slowly raised his head, eyes narrowing.And that’s how it all began…----------------But seizing BTC isn’t easy.Investigations are long. International cooperation? Messy.What if… the U.S. staged the theft themselves?Problem: stolen BTC must be returned to its rightful owners.Unless… those wallets belong to no one. Abandoned forever.A plan takes shape:1⃣ An “unknown actor” appears—hidden, shady, yet shielded by a big name: Salomon Brothers.2⃣ Over months, the narrative builds. Media outlets amplify it: “Abandoned wallets are a risk to BitcoAug 16, 2025 8:19 PM
github.com
Show HN: MCP Server for Spotify – control playback, queue, playlistshttps://github.com/victor-saez-gonzalez/mcp-spotify-playerI’ve built an MCP (Model Context Protocol) server for Spotify, so you can control music directly from MCP clients like Claude Desktop.Features (v0.1.0): - Playback: play, pause, next/previous, state, devices, volume, repeat - Queue: add tracks, list upcoming - Search: tracks, artists, albums (+ collection search for playlists/albums) - Albums: details & tracks - Artists: info, albums, top tracks - Library: saved albums (list, check, save, remove) - Playlists: list playlists, get tracks, create, rename, clear, add tracks - Diagnostics: quick auth/env check - MCP stdio server: JSON-RPC over stdio, integrates directly with ClaudeRepo: https://github.com/victor-saez-gonzalez/mcp-spotify-playerWould love feedback from the HN community: - Which Spotify features should I prioritize next? - Any best practices to make MCP setup smoother?Contributions welcome — and if this project is useful, a star helps others find itAug 16, 2025 7:41 PM
news.ycombinator.com
What features would parents value in an AI storytelling/companion app for kids?https://news.ycombinator.com/item?id=44926032I’m working on a project where kids can talk with AI companions (dragons, wizards, princesses, goblins) whose voices are generated with ElevenLabs. Parents have a control panel where they can manage the characters and upload knowledge. The system can also generate audiobooks, coloring pages, and themed songs, all tied to the stories.Some ideas I’m considering:Calm Castle: a calming, Headspace-like mode for kidsGames Portal: but I’m unsure what kinds of games would make senseI’d love to hear from parents (or others with ideas) about what features would be most valuable.Aug 16, 2025 6:58 PM
