Solar cells: Losses made visible on the nanoscale
Solar cells made of crystalline silicon achieve peak efficiencies, especially in combination with selective contacts made of amorphous silicon (a-Si:H). However, their efficiency is limited by losses in these contact layers. Now, for the first time,.....»»
Study proposes that proteins can compartmentalize and form droplets inside cells
In physics, a system composed of two substances can be modeled in accordance with classical mixture theory, which considers the fraction corresponding to each constituent and the interactions among constituents. Examples include the coexistence of hi.....»»
Stunning aurorae visible around the world caused by solar storms
Beautiful aurorae were visible in locations around the world this week due to increased activity from the sun......»»
Top 5 stories of the week: Stellantis executive shuffle; GM expects to pare EV losses
A quick look at the top automotive stories of the week as determined by reader interest......»»
Plant stem cells: Understanding the biological mechanism of growth control
Researchers from the University of Freiburg have identified the HAN molecule as an important regulator that controls plant growth in conjunction with WOX5. Understanding this mechanism is relevant for breeding more resilient or higher-yielding crops......»»
A geomagnetic storm is hitting the northern part of the US. Here"s how the solar event may impact you
Warnings about Hurricane Milton hitting Florida have dominated news reports this week. But there have been warnings from forecasters with the U.S. National Oceanic and Atmospheric Administration's Space Weather Prediction Center about another storm b.....»»
A quantum material could be the future of high-energy X-ray imaging and particle detection
Scintillators are detectors that make high-energy X-rays or particles visible through flashes of light to form an image. Their many applications include particle physics, medical imaging, X-ray security and more......»»
Expansion technique to image nanoscale structures inside cells makes high-resolution imaging more accessible
A classical way to image nanoscale structures in cells is with high-powered, expensive super-resolution microscopes. As an alternative, MIT researchers have developed a way to expand tissue before imaging it—a technique that allows them to achieve.....»»
New analysis tools can help farmers make informed choice on "agrivoltaics"
The dual use of land for agriculture and solar energy production, known as agrivoltaics, presents a new opportunity for farmers, but whether it makes economic sense for growers is a complex question. A new set of analytical tools developed by researc.....»»
Claustrophobic cells slow their own growth, forming beautiful patterns of concentric circles
Like so many organisms on the planet, when cells experience mosh-pit-level crowding, they may just become stressed. Yet unlike most other life forms, cells subject to physical stress from crowding by neighbors can find some relief by dramatically slo.....»»
Advanced model predicts gene architecture via nucleosome position
DNA—the molecule that carries the genetic information of all living organisms—is packaged within cells in a complex manner that allows it to function efficiently. Nucleosomes facilitate DNA compaction and also play a crucial role in regulating ge.....»»
From chaos to structure: How a bunch of seemingly disorganized cells go on to form a robust embryo
Pipetting liquids into tiny test tubes, analyzing huge datasets, poring over research publications—all these tasks are part of being a scientist. But breaking this routine is essential. Time away from the usual work environment can spark creative i.....»»
Novel visible light communication encryption technology uses chiral nanoparticles
A research team has developed a novel visible light communication encryption technology with high security using chiral nanoparticles......»»
Northern lights may be visible in much of upper US on Thursday, Friday
Still haven't caught a glimpse of those shimmery northern lights? Minnesotans have a good chance to snag one of those popular aurora borealis photos at the end of this week thanks to a "severe" geomagnetic storm expected to reach Earth on Thursday......»»
US forecasts severe solar storm starting Thursday
A massive ball of plasma and accompanying magnetic field ejected from the sun is expected to strike Earth on Thursday morning, potentially triggering auroras as far south as Alabama, according to US forecasters......»»
Severe solar storm could stress power grids even more as US deals with major back-to-back hurricanes
A severe solar storm is headed to Earth that could stress power grids even more as the U.S. deals with major back-to-back hurricanes, space weather forecasters said Wednesday......»»
Astronomers race to capture image of exoplanet near star
Planet AF Lep b is a world of firsts. In 2023, it was the lowest-mass planet outside our solar system to be directly observed and have its mass measured using astrometry. This is a technique that charts the subtle movements of a host star over many y.....»»
NASA announces a new class of space missions: Probe explorers
NASA has sent a whole host of spacecraft across the solar system and even beyond. They range from crewed ships to orbit and to the moon to robotic explorers. Among them are a range of mission classes from Flagships to Discovery Class programs. Now a.....»»
We’re finally going to the Solar System’s most intriguing but unexplored frontier
If you've been waiting for a real mission of discovery into the unknown, this is it. I really hate to be the bearer of such bad news, but you and I will not live forever, dear rea.....»»
How Chlamydia pneumoniae bacteria use molecular mimicry to manipulate the host cell
Bacteria that cause diseases, so-called pathogens, develop various strategies to exploit human cells as hosts to their own advantage. A team of biologists from Heinrich Heine University Düsseldorf (HHU), together with medical professionals and exper.....»»
GM expects lower EV losses in 2025, will drop Ultium name
GM executives did not say if EVs will be profitable in 2025. They pointed to the improving trajectory as a sign of progress in GM's EV strategy......»»