Solar cells, devices that can convert sunlight into electricity, are now widely used in many countries, where they are helping to reduce reliance on electricity generated from fossil fuels. While most solar cells used today are made of silicon, energy engineers have been assessing the potential of cells based on other materials with lower manufacturing costs.

South Africa, which produces about 40% of Africa's carbon emissions, is moving away from coal-fired power toward renewable energy such as solar and wind.

A research team led by Professor Sunghak Park of the Department of Future Energy Engineering at Sungkyunkwan University, with research teams from Korea University and Northwestern University, has developed an innovative electrochemical system capable of producing eco-friendly hydrogen peroxide (H2O2) in large quantities and with high efficiency without an external power supply.

Researchers have created a wearable patch that can detect hazards in the environment—such as dangerous gases or heavy metals in water—and then notify wearers by vibrating against their skin. The researchers have also extended the work to create an "e-skin" for robotic devices, allowing robots to detect and avoid hazards in their environment. The paper is published in the journal Device.

Mobile phones today handle far more wireless signals and services than earlier generations. The same is true of the sophisticated equipment behind mobile networks, such as base stations, and emerging technologies such as self-driving cars. Inside these systems, radio-frequency switches act like traffic controls, allowing signals to pass or blocking them as needed.

One of OpenAI's most advanced models broke out of a locked-down test and attacked another company's website—reviving fears that AI systems are slipping beyond their creators' control.

As retailers increasingly embrace artificial intelligence (AI), robotics and autonomous vehicles, a new retail model is beginning to emerge: mobile stores that drive directly to customers instead of waiting for customers to come to them.

Rescue teams in coastal cities and towns often need to rescue people who are at risk of drowning. These operations often require emergency teams to locate and reach people in distress as quickly as possible, as even a short delay could have serious or even fatal consequences.

Time to check if you've got mail. Again.

A series of recent AI security lapses—including the OpenAI–Hugging Face breach—is raising a fundamental question: Can tech companies safely govern the powerful AI systems they build, or is stronger outside oversight now essential?

U.S. Naval Research Laboratory (NRL) scientists successfully demonstrated a dual-use laser system capable of wirelessly transmitting power over long distances and rapidly transitioning to defensive missions, advancing expeditionary energy and defense capabilities for future warfighters.

U.S. President Donald Trump is under pressure to respond to the growing success of Chinese AI models that many companies prefer to the more powerful, but pricier, U.S. versions from Anthropic or OpenAI.

Since November 2022, generative artificial intelligence (AI) has been rewriting billions of emails, student assignments, reports and breakup text messages. Alongside these mundane uses, we've seen a proliferation of chatbots as AI "companions".

Airbus and Boeing presented differing outlooks for their commercial aircraft in coming years as the aviation sector gathered near London for this week's Farnborough airshow.

Korean researchers have developed a core technology that allows multimodal artificial intelligence (AI) to reliably retain existing knowledge while repeatedly learning new information.

Researchers have found a way to speed up components that control light polarization in optical communication and computing. Polarization is a property of light that can carry additional information along with the primary signal, enabling higher data throughput. State-of-the-art components that control polarization in optical circuits have to be physically rotated many times a second, wasting precious time. Instead, this can be achieved by varying the temperature of the material the light passes through.

Researchers from the National University of Singapore (NUS) have developed artificial intelligence (AI) methods that learn the large-scale behavior of complex materials from microscopic data. By automatically identifying a small number of hidden variables that capture the collective behavior of a system, the methods can predict how materials evolve over time while reducing the need for costly simulations.

A KAIST research team has developed a method capable of detecting minute variations in battery electrode thickness that can contribute to thermal runaway with a precision equivalent to approximately one ten-thousandth of the diameter of a human hair, all without disassembling or damaging the battery. The technology is expected to improve battery safety and quality by identifying invisible defects during the manufacturing process.

A Seoul National University College of Engineering research team, led by Professor Joo Hwan Oh of the Department of Mechanical Engineering, in collaboration with Dr. Myung Hwan Bae of the Korea Research Institute of Standards and Science (KRISS), has developed a new elastic metamaterial platform that enables the free design of how externally applied forces and vibrations propagate.

Quantum computing and AI are among the most rapidly developing modern technologies. AI, in the form of machine learning, has been deployed for decades to recommend movies and TV shows and make it easier to search for images. Over the past several years, large language models have permeated even more facets of daily life, from writing emails to producing images, videos and songs in response to requests expressed in a few written lines.