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Barnes Ice Cap sits on the central plateau of Baffin Island, in the Canadian Arctic. It is the last surviving fragment of the Laurentide Ice Sheet, the largest of the Pleistocene ice sheets, which at its peak buried most of Canada under two miles of ice and locked away around 80 meters of sea level. That remnant has now yielded direct physical evidence that ice sheets might have reversed their retreat and started to grow again thousands of years ago.
In a recent Science study, researchers show that the Laurentide reached its smallest size about 3,600 years ago, then started re-expanding roughly 2,000 years ago, which the team interprets as the opening move of the next glaciation. Apparently, this brand-new ice age was on its way until about 1960, when human-caused climate warming reversed it.
“Barnes is the last remaining piece of one of the domes of the Laurentide Ice Sheet,” says Nicolás Young, a geologist at Columbia University's Lamont-Doherty Earth Observatory and lead author of the study. As that enormous dome thinned through the Holocene, its margin withdrew up onto Baffin Island, and what's left today is the deflated core of something that was once two miles thick. The reason Barnes can testify about its own history, Young explains, comes down to the temperature at its base.
Cet article a été réalisé en collaboration avec LDLC et Nvidia
Avec sa troisième édition, l’Artefact AI Film Festival continue d’interroger les liens entre cinéma et intelligence artificielle. Une exploration sur le fond comme sur la forme : l’IA devient un outil pour les cinéastes, tandis que les relations entre l’humain et la machine nourrissent leurs récits.
Cet article a été réalisé en collaboration avec LDLC et Nvidia
Il s’agit d’un contenu créé par des rédacteurs indépendants au sein de l’entité Humanoid xp. L’équipe éditoriale de Numerama n’a pas participé à sa création. Nous nous engageons auprès de nos lecteurs pour que ces contenus soient intéressants, qualitatifs et correspondent à leurs intérêts.
Nvidia's 64GB DGX Spark launches at $4,999 with the same GB10 chip as the 128GB version. Compare memory limits, model support, clustering costs, and what IT buyers should verify.
The post Nvidia DGX Spark 64GB Launches at $4,999: Is It Worth It? appeared first on TechRepublic.
Amazon's new Bee AI devices can summarize conversations, but their recording controls raise consent questions for employers and meeting participants.
The post Amazon Bee Frontier and Bee Eclipse Raise Workplace Consent Concerns appeared first on TechRepublic.
C'est Halloween, et qui dit Halloween dit films d'horreur. C'est même l'une des règles d'or pour réussir son mois d'octobre. Mais lorsqu'on a des enfants, difficile de s'y tenir : les envies de cinéma se tournent davantage vers un bon vieux Disney ou un film de Ghibli que vers un classique de l'épouvante. Alors, quel film qui fait peur peut-on regarder avec ses enfants sans risquer de les traumatiser ?
Over the past week, the laptop Microsoft sent me has been summarizing books and movies, generating images from my imagination, and running a 70-billion-parameter AI model that would be a stretch to fit on most laptops. It also played AAA games at a speed and fidelity I would have thought impossible on an ARM system just a year ago. Microsoft wants to sell you one computer for all of your needs, and for once that doesn't feel like total marketing fluff. Mostly.
Microsoft is throwing both arms around the new Nvidia RTX Spark platform with the Surface Laptop Ultra—and setting its sights on the would-be MacBook Pro buyer, or as the company called it, "a high performance audience." The bet is that rather than a gaming desktop for fun and a development laptop for work, buyers will pay more for one machine that does both.
The Surface Laptop Ultra arrives at a strange time in personal computing. Recent industry numbers showed a 20 percent drop in total PC shipments year over year in the third quarter of 2026. That's not just consumer purchasing either—that's across the board. Between the RAMpocalypse that has exploded consumer prices and an industry fixated on enterprise money, there hasn't been much new hardware to excite PC enthusiasts.
whatsapp, meta, video calling, voice calls, messaging apps, workplace collaboration, whatsapp business, communication tools
The post WhatsApp Now Lets You Join Calls Without an Account. Here’s How appeared first on TechRepublic.
Bitdeer is expanding its AI infrastructure footprint in Malaysia with a new 67 MW facility designed for NVIDIA Blackwell systems. Here's what's confirmed about its rollout and customer commitments.
The post Bitdeer Secures 67 MW for Nvidia AI in Malaysia, but No Customer Deal Announced appeared first on TechRepublic.
Sorti le 6 octobre, Star Wars: Galactic Racer, le jeu de course développé par Fuse Games, amuse les fans avec une réplique de Sebulba sur Anakin Skywalker.
Le bassin de Wilkes, en Antarctique, est gelé et en partie situé sous le niveau de la mer. Si toute sa glace venait à fondre en raison du changement climatique, le niveau global de la mer monterait de 3 à 4 mètres. C’est déjà arrivé par le passé, à des températures que nous risquons d’atteindre. Il est urgent de mieux documenter son évolution actuelle et de comprendre comment il a réagi par le passé à d’autres réchauffements.
Un studio composé d'anciens développeurs et développeuses de Burnout qui se lance dans un jeu de courses dans l'univers Star Wars, on s'attendait à ce que ça fasse des étincelles. Mais Galactic Racer est en fait un vrai feu d'artifice.
Google's Gemini Agent can handle tasks across workplace apps, join team conversations, and complete longer assignments. See how it works and what's available.
The post Google’s New Gemini Agent Can Handle Work Across Multiple Apps appeared first on TechRepublic.
Samsung's 9100 Pro and WD Black SN8100 are flagship PCIe 5.0 SSDs, but independent tests reveal meaningful differences in sustained writes, thermals, and value.
The post Samsung 9100 Pro vs WD Black SN8100: Which Is Better? appeared first on TechRepublic.
ODYSS N1 uses a camera and AI to log meals automatically, but its food recognition and calorie estimates still lack independent device-specific validation.
The post ODYSS N1 AI Necklace Wants to Track Everything You Eat Without Food Logging appeared first on TechRepublic.
[Précommande] Star Wars: Galactic Racer sort le 6 octobre 2026, mais il profite déjà d'une belle réduction. Le jeu de course de Fuse Games est en précommande à 44,99 € au lieu de 59,99 € sur Amazon, en version physique sur PS5 et Xbox Series.
Amazon is reportedly considering an $8 billion Nvidia chip sale-leaseback as it looks for new ways to finance its massive AI infrastructure buildout.
The post Amazon’s $8 Billion Nvidia Chip Plan Shows the Cost of the AI Boom appeared first on TechRepublic.
Meta’s Muse AI shared a Facebook Marketplace seller’s pickup address and arranged a deal that ended with a buyer showing up unexpectedly.
The post Meta AI Shares Seller’s Address: Facebook Marketplace Buyer Shows Up at His Home appeared first on TechRepublic.
Amazon plans more than 20,000 Smart Delivery Glasses by the end of 2027, bringing AI navigation and new privacy questions to its delivery network.
The post Amazon Plans 20,000+ Smart Glasses for Delivery Drivers in 2027 appeared first on TechRepublic.
The first in a new class of space telescopes is on track to reach the launch pad in the early 2030s, NASA announced this week.
The PRIMA mission will be the first of NASA's Probe Explorers, a new line of observatories intended to do more science for less money. The agency's space telescopes typically fall into lower-cost "Explorer-class" missions, with cost caps in the range of a few hundred million dollars, or flagship observatories like the recently launched Nancy Grace Roman Space Telescope, which came with a price tag of some $4.3 billion.
With the Probe Explorers, NASA officials seek to find a better balance between the smaller Explorer missions and multibillion-dollar flagships. NASA has studied potential Probe Explorer mission concepts for several years after an independent panel of scientists recommended the new mission category. But it wasn't clear until recently whether NASA's science budget, which is under pressure from the Trump administration, would be sufficient to actually start developing one.
Sennheiser’s $299.95 Momentum True Wireless 5 adds user-replaceable batteries to both the earbuds and charging case, plus longer battery life and Bluetooth 6.0.
The post Sennheiser Momentum True Wireless 5: Key Features and Price appeared first on TechRepublic.
La semaine du 24 août 2026 a été tristement marquée par la catastrophe climatique qui s'est produite au Népal. Dans le reste de l'actualité scientifique : une pluie artificielle de la startup Rainmaker et une éclipse de Lune visible en France.
Plaud One uses AI earbuds and a 4G-connected case to record, summarize, and act on workplace conversations without relying on a nearby smartphone.
The post Plaud One: AI Earbuds That Listen, Summarize, and Take Action appeared first on TechRepublic.
Bill Gates argues some jobs should remain human as AI advances, proposing “Human Reserved” roles and new taxes intended to curb worker displacement.
The post Bill Gates Says Some Jobs Should Be Off-Limits to AI appeared first on TechRepublic.
OpenAI says its Jalapeño chip delivered up to 1.9 times more performance per watt than Nvidia Blackwell systems in its first published benchmark tests.
The post OpenAI’s Jalapeño Benchmark Promises Faster, Cheaper AI appeared first on TechRepublic.
La catastrophe survenue au Népal le 26 août 2026 a été rapidement documentée par des images filmées par des témoins. Il a fallu attendre un peu plus pour obtenir les premières images de satellites, qui montrent comment les crues sont survenues, en complément des données géologiques.
Une catastrophe s'est produite au Népal ce 26 août 2026. Une inondation massive est survenue près de la frontière tibétaine, et de très nombreuses victimes sont à déplorer. L'origine de ces crues massives est attribuée au phénomène du GLOF : de quoi s'agit-il ?
Slack Code gives AI coding agents shared project channels where teams can watch, guide and review software development as it happens.
The post Slack Code: AI Coding Agents Get Shared Channels for Review and Oversight appeared first on TechRepublic.
Une étoile a été identifiée à une vitesse jamais vue auparavant, autour du trou noir au centre de la Voie Lactée. Un record pour un astre de ce type mais qui est largement dépassé par d'autres objets dans l'Univers.
ICE warned employees against using Meta smart glasses on duty as DHS seeks $7.5 million to develop biometric-enabled prototypes for field agents.
The post ICE Warns Employees Against Meta Smart Glasses appeared first on TechRepublic.
Sgr A* is the name we've given to the supermassive black hole that sits at the center of the Milky Way. We've known about its presence since the 1970s but only managed to image it within the past few years. In the intervening time, most of our understanding of the object was obtained by watching a group of stars that orbit the black hole, helping us get a good estimate of its mass and size. In essence, those stars acted as instruments that let us peer into an environment we couldn't study any other way.
In Wednesday's issue of Nature, researchers describe a recently discovered star that is on an extremely eccentric orbit that takes it closer to Sgr A* than anything we've previously identified. It gets so close that it may help us get our first measurements of the spin of the black hole.
There's an entire population of stars that orbit relatively close to Sgr A*. We can estimate their mass based on their brightness and spectral features. Using their masses and a reconstruction of their orbits using several years of data, we can figure out just how supermassive Sgr A* is (nearly 1037 kilograms).
Verb has launched a marketplace that lets consumers sell selected personal data, testing whether users will trade privacy for direct payment.
The post Verb Launches Marketplace That Lets Consumers Sell Their Personal Data appeared first on TechRepublic.
Black Hat and Ai4 2026 highlighted gaps in AI agent security, identity controls, software supply chains, monitoring, and incident response.
The post 15 AI Security Lessons From Black Hat and Ai4 2026 appeared first on TechRepublic.
Cette année, les Nuits des étoiles ne seront que le début. Du 7 au 9 août 2026, des centaines de soirées d’observation seront organisées en France, avant une éclipse solaire exceptionnelle le 12 août et le pic des Perséides dans la nuit suivante.
WhatsApp is adding anonymous polls, timed voting, @all mentions, and new group tools as Meta expands the app’s collaboration capabilities.
The post Meta Gives WhatsApp Group Chats a Productivity Boost With New Collaboration Features appeared first on TechRepublic.
The Open Secure AI Alliance introduced SAFE guidelines and open agent-security tools at Black Hat, giving enterprises a framework for safer AI deployment.
The post Open Secure AI Alliance Expands at Black Hat: What You Should Know appeared first on TechRepublic.
Gmail now warns BCC recipients before they reply all, helping prevent accidental exposure of their involvement and email address.
The post Gmail’s New Feature Warns You Before Revealing You Were BCC’d appeared first on TechRepublic.
Polar’s AI browser can automate work across logged-in websites, but IT teams should test its permissions, data handling, approval controls, and prompt-injection defenses before wider deployment.
The post Polar AI Browser Launches With a New Model for Workplace Automation appeared first on TechRepublic.
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