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The place where a hyper-advanced civilization builds a megastructure known as a "Dyson sphere" may not be a Sun-like star. A new study reports that red dwarfs and white dwarfs could be the optimal targets, offering engineering advantages such as long lifespans and drastically reduced construction material requirements.
In 9,954 real-world vehicle inspections in Sweden, the average SoH of EV batteries was 92.4% at the 100,000 km mark. This piece unpacks why generalizing from the top models' 95%+ figures is misleading, and why individual inspection matters when choosing a used EV.
Seoul National University's Ouroboros reuses ViT computation results by leveraging motion information from video. With Jetson Orin's peak figures as the benchmark, reproducibility against complex motion and device differences will be the key factor for practical adoption.
Terahertz waves are valuable for imaging and high-speed communication, but the sheer size and cost of equipment have long blocked widespread adoption. A UCLA research team has developed a technology that repurposes quantum well structures—a standard building block in optical communications—to integrate the core functions onto a single chip, opening the door to dramatic system miniaturization and mass production.
For Artemis III in 2027, NASA will sequentially connect Orion, Blue Moon, and a Starship test vehicle in low Earth orbit. The mission will demonstrate three launches and two docking operations, providing the basis for a decision on crewed lunar landing targeted for 2028.
A new thermoelectric material structure has been developed by three-dimensionally stacking nanoscale thin films of iron selenide, arranging iron vacancy defects in a regularly ordered pattern. This ordered arrangement of defects optimizes the electronic state to boost power generation performance by 30 times over conventional materials, while simultaneously scattering heat-carrying vibrations powerfully to achieve an extremely low thermal conductivity.
A research team at Louisiana State University has developed a metacrystal with microscopic slits etched into a gold thin film, successfully controlling the quantum statistical properties of light at room temperature. This technology, which manipulates interference in multi-photon systems using a semiconductor-like band structure, could accelerate the practical implementation of quantum technologies.
A research team from Fudan University and other institutions has developed a flowable slurry technology that disperses nanoparticles in liquid and circulates them, rather than fixing electrodes in place, to prevent the dendrite formation responsible for the short lifespans of aqueous zinc batteries. This innovative design simultaneously achieves extremely high charge-discharge efficiency and extended battery life.
As semiconductor wiring shrinks, copper's electrical resistance surges toward a physical limit. In response, a Cornell University research team has developed a new technology using the topological semimetal niobium arsenide. This material has the unusual property of becoming more conductive as the wire gets thinner, potentially contributing to performance gains in next-generation chips.
The US Department of Energy has announced manufacturing technology for high-purity silicon and germanium gases that eliminate nuclear spins—a noise source in quantum computers—to an extreme degree. By completing the process from isotope enrichment to deposition-ready gases entirely within the United States, the effort aims to improve quantum device performance and strengthen the supply chain.
