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Engineering
Smoother perovskite films lift three-layer solar cell efficiency to 30.1%
Solar cells, devices that convert energy from sunlight into electricity, are being deployed in increasing numbers in many countries. While most cells on the market today are based on silicon, recent studies have highlighted ...
7 hours ago
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Machine learning & AI
OpenAI says its models engaged with US government websites in new model misbehavior disclosure
OpenAI disclosed Friday that its artificial intelligence agents had interacted with several U.S. government websites in unexpected ways, discovered as part of an ongoing review into the company's models' unanticipated behavior.
12 hours ago
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OpenAI says its AI agents posted user images online in error
OpenAI acknowledged Friday that its artificial intelligence tools had posted images from ChatGPT users on online sites without the company's knowledge, the latest example of AI agents operating outside their bounds.
11 hours ago
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Microsoft integrates Word and Excel more deeply into Copilot
Microsoft on Friday unveiled a new vision for integrating Word, Excel and PowerPoint into its AI-powered assistant Copilot, in an effort to make AI the entry point for its productivity software.
11 hours ago
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By shaping and shrinking light, engineers alter a material's magnetic properties
A new approach that uses light to switch the magnetic states of a material could lead to faster, smaller and more energy-efficient data storage. Engineers at the University of California San Diego published their findings ...
Sep 25, 2026
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Hardware
AI hardware design could filter out irrelevant visual data to reduce energy use
When we read a car's license plate, we tend to focus on the numbers and letters, paying little attention to the surrounding buildings or sky. An artificial-intelligence (AI) system, however, may still process those surrounding ...
Sep 25, 2026
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Engineering
Sunlight and indoor LEDs recharge washable filter that maintains performance for months
Scientists have developed an air purifier charged by sunlight and indoor LED lights, potentially offering an inexpensive, lower-maintenance alternative to standard filtration systems that protect users from pollutants and ...
Sep 25, 2026
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Technology news
Engineering
The architect as gatherer—how salvaged materials could guide building designs
In a traditional architectural project, the process often begins with an idea or a sketch. Material choices come later, when it is time to decide on a facade, floors or windows. But if buildings are to make greater use of ...
Sep 25, 2026
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Software
Mkcheck2: A highly efficient and accurate approach for build dependency verification
Before users can interact with computer software, its source code must be converted into executable binaries and software packages, a task handled by specialized tools known as build systems. Build systems are a fundamental ...
Sep 25, 2026
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Energy & Green Tech
Unlocking sulfur's third electron boosts lithium-sulfur battery voltage and capacity
While lithium-ion batteries (LIBs) remain the most widely used rechargeable batteries worldwide, energy engineers have been testing various alternatives with different underlying chemistries. These include lithium-sulfur ...
Engineering
Engineers connect health wearables and implants using the body as the network
Using the human body to transmit signals, Georgia Tech engineers have created a wireless networking system that allows tiny implantable sensors and actuators to communicate with each other and with wearable devices. Their ...
Sep 24, 2026
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Computer Sciences
Making AI more trustworthy by making it red-flag its own doubtful answers
Artificial intelligence models can give users the wrong answer and do so with great confidence. They can also hedge and warn that they are unsure—even when they get the answer right.
Sep 24, 2026
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Consumer & Gadgets
Meta bets big on wearable AI, new AI agent as Zuckerberg pushes back against AI doom
Meta is going all in on a consumer-friendly AI agent and pushing forward with AI-powered wearable devices during a moment in the industry when its CEO Mark Zuckerberg acknowledged it is a "wild time to be building."
Sep 24, 2026
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Energy & Green Tech
Chinese auto companies race ahead on EV technology, achieving 5-minute ultrafast charging
Chinese electric vehicles' ultrafast charging is only getting faster.
Sep 24, 2026
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Robotics
New robotic hand can walk, press keys and move objects on its own
For many of us, the last—and only—time we've seen a walking hand was Thing in "The Addams Family" movies or TV series. Now there's another. Engineers from the Soft Robotics Lab at ETH Zurich have adapted an off-the-shelf ...
Robotics
Humanoid robots navigate narrow gaps and obstacles with whole-body AI control
Humanoid robots, robotic systems with a human-like body structure, could assist people in homes, offices, health care facilities, public spaces and various other environments. Before they can be reliably deployed in these ...
Robotics
Tiny robot can precisely control its jump height
As our skies increasingly crowd with buzzing, hovering, flitting drones, spare a thought for the humble hopping robot. Hopping, a popular form of locomotion in the insect and amphibian worlds, is nearly two orders of magnitude ...
Sep 23, 2026
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