nasa.gov
Exposure Guidelines (SMACs and SWEGs)https://www.nasa.gov/directorates/esdmd/hhp/exposure-guidelines-smacs-and-swegs/The JSC toxicologists establish guidelines for safe and acceptable levels of individual chemical contaminants in spacecraft air (SMACs) and drinking water (SWEGs) in collaboration with the National Research Council’s Committee on Toxicology (NRC COT) and through peer-reviewed publication. The framework for establishing these levels is documented for SMACs and SWEGs, and recent refinements to the Methods reflect current risk assessment […]Dec 16, 2025 3:35 PM
esa.int
20 years in Antarcticahttps://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/20_years_in_AntarcticaFor two decades, ESA has sent a medical doctor to brave the cold and more for 13 months at Concordia station in Antarctica, one of the most remote places on Earth. This unique environment – isolated, confined and extreme – mirrors many of the psychological and physiological challenges astronauts face in space. By studying life at Concordia, scientists can better understand these effects, develop countermeasures and prepare for future human missions beyond Earth.Dec 15, 2025 1:36 PM
nasa.gov
Painting Galaxy Clusters by Numbers (and Physics)https://www.nasa.gov/general/painting-galaxy-clusters-by-numbers-and-physics/Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand individual galaxies and huge reservoirs of superheated, X-ray-emitting gas. The mass of this hot gas is typically about five times higher than the total mass of all the galaxies in galaxy clusters. In addition to these […]Dec 9, 2025 9:07 PM
spacedaily.com
New island of inversion found in proton neutron symmetric molybdenum nucleihttps://www.spacedaily.com/reports/New_island_of_inversion_found_in_proton_neutron_symmetric_molybdenum_nuclei_999.htmlTokyo, Japan (SPX) Dec 09, 2025 For decades, nuclear physicists have known that so called islands of inversion mark regions of the nuclear chart where standard shell structure breaks down and magic numbers vanish in favor of strongly deformed shapes. In earlier work these islands were identified mainly in neutron rich isotopes such as beryllium 12 with N = 8, magnesium 32 with N = 20, and chromium 64 with N = 40, all distant fDec 9, 2025 4:08 AM
github.com
Show HN: A Call of Duty event clipper and compilation maker using Python and AIhttps://github.com/karimm-ai/NiceShot_AIHi HN,I solo-developed a Python tool that automatically finds and extracts key gameplay moments from long Call of Duty: Black Ops 6 gameplay videos. Saving hours of manual scrubbing through VODs to find highlights, kills, and other events.The tool does these things:Ingests long-form gameplay videos.Applies computer vision to detect (kills, deaths, medals)Generates raw highlight clips or compilations without needing manual trimming. Output: individual clips or a concatenated compilationPerforms bulk BO6 VODs analysis on a full Twitch channel.GitHub (work in progress or demo repo): [https://github.com/karimm-ai/NiceShot_AI]Would definitely love any feedback regarding the tool or monetization methods.Thanks.Dec 5, 2025 9:14 PM
spacedaily.com
Gels may have given early Earth chemistry a place to organize into lifehttps://www.spacedaily.com/reports/Gels_may_have_given_early_Earth_chemistry_a_place_to_organize_into_life_999.htmlBerlin, Germany (SPX) Dec 03, 2025 An international team from Japan, Malaysia, the UK, and Germany has proposed that life on Earth may have emerged within sticky, surface-bound gels that formed before the first cells. The researchers argue that these prebiotic gels, attached to mineral or other surfaces, could have provided both structure and chemical environments that helped early chemistry progress toward biology. The teaDec 5, 2025 9:21 AM
marsdaily.com
Scientists trace ancient mega watersheds on Marshttps://www.marsdaily.com/reports/Scientists_trace_ancient_mega_watersheds_on_Mars_999.htmlLos Angeles CA (SPX) Dec 03, 2025 Billions of years ago, rainfall on Mars fed rivers that cut valleys, overtopped crater rims and carved canyons, with some flows likely reaching a northern ocean basin on the planet. Researchers at The University of Texas at Austin have now organized these fluvial features into large drainage systems, producing the first global inventory of major Martian river basins and identifying 16 largDec 3, 2025 9:03 AM
spacedaily.com
Platinum Crystals Mapped as They Develop Inside Liquid Metalhttps://www.spacedaily.com/reports/Platinum_Crystals_Mapped_as_They_Develop_Inside_Liquid_Metal_999.htmlSydney, Australia (SPX) Nov 25, 2025 Scientists at the University of Sydney have demonstrated the growth of platinum crystals in liquid metal by applying advanced X-ray tomography techniques. This research offers fresh understanding of the crystal formation process within dense, opaque materials. The team built an electrode using metallic crystals capable of efficiently producing hydrogen from water. These crystals, grown inNov 25, 2025 8:03 AM
esa.int
Galileo to take its first flight on Ariane 6 on 17 Decemberhttps://www.esa.int/Applications/Satellite_navigation/Galileo_to_take_its_first_flight_on_Ariane_6_on_17_DecemberOn 17 December 2025, two Galileo satellites will be launched by Arianespace on Ariane 6 from Europe’s Spaceport in French Guiana. This 14th operational launch in the Galileo programme will improve the precision, availability and robustness of the Galileo system. These satellites will benefit the billions of people who use Galileo daily via their smartphone as well as key sectors such as critical infrastructure, autonomous driving, air traffic, maritime, agriculture, emergency services and rescue operations.Nov 20, 2025 9:31 AM
bing.com
Best Used Electric Vehicleshttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a89aaf2c3564e228bbfc2b63fa25bfb&url=https%3A%2F%2Fwww.caranddriver.com%2Frankings%2Fused%2Felectric-cars&c=15141814808501923560&mkt=en-usPre-owned EVs can be a great deal, and these are our favorite electric models whether you're looking for a battery-powered sedan, SUV, or pickup truck. Car and Driver's rankings are arrived at from ...Nov 17, 2025 9:03 AM
news.ycombinator.com
Ask HN: Help me understand Signal communication blurbhttps://news.ycombinator.com/item?id=45909780at bottom of signal communication on cellebrite [0] it states :>The completely unrelated>In completely unrelated news, upcoming versions of Signal will be periodically fetching files to place in app storage. These files are never used for anything inside Signal and never interact with Signal software or data, but they look nice, and aesthetics are important in software. Files will only be returned for accounts that have been active installs for some time already, and only probabilistically in low percentages based on phone number sharding. We have a few different versions of files that we think are aesthetically pleasing, and will iterate through those slowly over time. There is no other significance to these files.can someone help me understand if this is serious or not and what it actually means?[0] https://signal.org/blog/cellebrite-vulnerabilities/Nov 13, 2025 2:30 AM
getallinsights.com
Show HN: I built a lightweight AI tool to analyze visitor behaviorhttps://getallinsights.comI started working on this when I realized what's wrong with tools like FullStory. I work at a B2C iGaming company in product management. We use FullStory and it has been very helpful for watching session recordings to analyze customer behavior, but also for session replays during bug investigations.However, there are a couple of problems with it. It's very expensive and very heavy because it captures all DOM changes, so it slows down the experience of the end user. For these reasons you are forced to do heavy sampling, for example record only 10% of the sessions. Apart from that, you need to spend a lot of time watching session replays, and sometimes you cannot find the session you are interested in as it might not be included in the recorded sample.This was basically the trigger for the idea. I started working on building my own tool. The idea was to make it as simple and lightweight as possible, and focus on clarity rather than adding a lot of bloat.Also worth mentioning, I have notiOct 30, 2025 2:32 PM
news.ycombinator.com
Show HN: The Σ-Manifold Manifestohttps://news.ycombinator.com/item?id=45698543This project explores the connection between *the linear structure of text* and its *emotional-aesthetic impact*. We identify *five fundamental relations* between consecutive sentences — labeled *A–E*. Each represents a shift of *subject-object*, i.e., a transformation of perspective and agency.When texts grow longer, these relations form *sequences* — and from the infinite combinatorial space, *eight stable patterns (Σ₁–Σ₈)* emerge empirically. Each pattern correlates with a distinct *semantic and emotional field* — cathartic, heroic, meditative, humorous, and so on.This allows us to instruct an LLM not through semantic prompts (“write a story about…”), but through *structural commands* — e.g., generate a narrative following sequence Σ₅ (Tragic Counterpoint). You can experiment with these archetypes directly here: [Narrative Generator](https://a2tg9zwayjuqzcpdznklve.streamlit.app/~/+/#narrative-...) or [via python](https://github.com/mihendr/Echoes-of-autonomy/blob/main/TEMA...)IntereOct 24, 2025 8:04 PM
bing.com
Here's Why Car Manufacturers Made The Switch From Lug Nuts To Lug Boltshttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a898c588a63470591fedb2db3afd40b&url=https%3A%2F%2Fwww.slashgear.com%2F1985672%2Fwhy-car-manufacturers-switched-from-lug-nuts-to-bolts%2F&c=16537681974047521335&mkt=en-usFor most people, replacing a tire means taking out the nuts holding down the current tire, removing the tire, mounting the new tire, and then re-tightening the lug nuts. These nuts are important for ...Oct 4, 2025 5:00 AM
news.google.com
Google Cloud Data Engineer Practice Exam Questionshttps://news.google.com/rss/articles/CBMixwFBVV95cUxOQ1dnT1lzZVc2ajRHWjA2ejRpVXpPd2k1Y0xVZWVHdV93SUQ4M1gxSUcxYzMxNkhjZ1RVa195OFEyUVRfaVVUZ21RcTluZE5ud1pCMlhnX3hFSU5zWlYwX0lnRkNRMHdmdjh2dFoyRXp6NGFpLUJDd2EtS25rTGZxanB3UUdmTzFYWGN5Q2pCZGo2bzZHNDI4ZUZ3U3JUUkVhaGhlLTMzaTJrUEE3SWNCZkJ5T1NWU01ZbGsxSkNoY2xqSE01Zk1r?oc=5Google Cloud Data Engineer Practice Exam Questions TheServerSide.comOct 1, 2025 7:00 AM
bing.com
10 Underrated Qualities That Make Someone Sexyhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8947a720f14c939da7ac07d919378e&url=https%3A%2F%2Fwww.psychologytoday.com%2Fus%2Fblog%2Frediscovering-love%2F202101%2F10-underrated-qualities-that-make-someone-sexy&c=17807453855573727458&mkt=en-usMost people define sexy people as “hot,” “titillating,” “seductive,” and highly focused on sexual desirability and conquest. The media underscores these thoughts, sexualizing those who behave in ...Sep 18, 2025 9:44 AM
esa.int
ESA data records help underpin climate change reporthttps://www.esa.int/Applications/Observing_the_Earth/Space_for_our_climate/ESA_data_records_help_underpin_climate_change_reportAccording to the newly released 35th State of the Climate report, 2024 saw record highs in greenhouse gas concentrations, global land and ocean temperatures, sea levels, and ocean heat content. Glaciers also suffered their largest annual ice loss on record. Data records from ESA’s Climate Change Initiative helped underpin these findings.Aug 25, 2025 11:49 AM
bing.com
A growing landscape of religious traumahttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a893c7ac841449da035468280522644&url=https%3A%2F%2Fwww.christiancentury.org%2Ffeatures%2Fgrowing-landscape-religious-trauma&c=18401824672683021280&mkt=en-usThese days, it seems like trauma talk is everywhere you turn. Looking back, signs of an approaching wave were there. So perhaps it should come as no surprise that public conversation about religious ...Aug 21, 2025 5:00 PM
bing.com
What is a content delivery network?http://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a895ac49426428eac8f2df6c886fc1f&url=https%3A%2F%2Fwww.techtarget.com%2Fsearchnetworking%2Fdefinition%2FCDN-content-delivery-network&c=469871032719006079&mkt=en-usA content delivery network (CDN), also called a content distribution network, is a group of geographically distributed and interconnected servers. To speed up the delivery of content to users, these ...Jul 28, 2025 2:01 AM
browser-work.com
Show HN: An API for human-powered browser taskshttps://browser-work.com/At APM Help, we have a large team that performs repetitive, browser-based tasks. Years ago, to manage this work securely and get a clear audit trail, we built an internal platform we call "Hub." It's essentially a locked-down environment where our team works that records their sessions, tracks every interaction, and prevents data from being copied or shared. It's been our internal source of truth for years.More recently, like many companies, we've been building more automation. And like everyone else, we've seen our automations fail on edge cases—a weirdly formatted invoice our parser can't read, a website layout change that breaks a scraper, etc. Our team would have to manually step in to fix these.We realized other developers must have this exact same problem, but without a 250-person team on standby. So we connected our old, battle-tested Hub to a new, modern front door: a Human-in-the-Loop (HITL) API. We're calling it browser-work.com.The idea is simple: when you hit a task that neJul 21, 2025 4:16 PM
