Photonic crystals could be exactly what Breakthrough Starshot is looking for

Light sail technology is a fascinating concept and a step change in rocket propulsion. It may not be big and impressive like the Saturn V, the Space Shuttle or the new Starship rocket but when it comes to traveling among the stars, light sails could just be the answer. And what b … | Continue reading


@phys.org | 11 months ago

Webb rings in holidays with ringed planet Uranus

The James Webb Space Telescope recently trained its sights on unusual and enigmatic Uranus, an ice giant that spins on its side. Webb captured this dynamic world with rings, moons, storms, and other atmospheric features—including a seasonal polar cap. The image expands upon a two … | Continue reading


@phys.org | 11 months ago

Harnessing nanotechnology to understand tumor behavior

A new study conducted by pre-Ph.D. researcher Pablo S. Valera demonstrates the potential of surface-enhanced Raman spectroscopy (SERS) to explore metabolites secreted by cancer cells in cancer research. | Continue reading


@phys.org | 11 months ago

Plant metabolism proves more complicated than previously understood

Plants have evolved fiendishly complicated metabolic networks. For years, scientists focused on how plants make secondary metabolites, the compounds that plants produce to enhance their defense and survival mechanisms. | Continue reading


@phys.org | 11 months ago

NASA's BurstCube passes milestones on journey to launch

Scientists and engineers at NASA's Goddard Space Flight Center in Greenbelt, Maryland, have completed testing for BurstCube, a shoebox-sized spacecraft designed to study the universe's most powerful explosions. Members of the team have also delivered the satellite to their partne … | Continue reading


@phys.org | 11 months ago

New method could help estimate wildlife disease spread

A new method could be used by biologists to estimate the prevalence of disease in free-ranging wildlife and help determine how many samples are needed to detect a disease. | Continue reading


@phys.org | 11 months ago

First segments of the world's largest telescope mirror shipped to Chile

The construction of the European Southern Observatory's Extremely Large Telescope (ESO's ELT) has reached an important milestone with the delivery to ESO and shipment to Chile of the first 18 segments of the telescope's main mirror (M1). Once they arrive in Chile, the segments wi … | Continue reading


@phys.org | 11 months ago

Feelings of impatience evolve over time, study says

A new study answers a timely question: What is the hardest part of waiting? Consumers do plenty of it—online, in line, in traffic, or for deliveries. And now we know it's the final phase that's most problematic for them. | Continue reading


@phys.org | 11 months ago

COP28 assessment: Impact will depend on actual implementation

About a day later than planned, the 28th Conference of the Parties (COP28) to the United Nations Framework on Climate Change (UNFCCC) closed on 13 December 2023. After much contestation, the conference adopted a decision that effectively signals the beginning of the end for fossi … | Continue reading


@phys.org | 11 months ago

Chimps and bonobos can recognize long-lost friends and family for decades, find researchers

Researchers led by a University of California, Berkeley, comparative psychologist have found that great apes and chimpanzees, our closest living relatives, can recognize groupmates they haven't seen in over two decades—evidence of what's believed to be the longest-lasting nonhuma … | Continue reading


@phys.org | 11 months ago

First observation of how water molecules move near a metal electrode

A collaborative team of experimental and computational physical chemists from South Korea and the United States has made an important discovery in the field of electrochemistry, shedding light on the movement of water molecules near metal electrodes. | Continue reading


@phys.org | 11 months ago

Scientists may be using a flawed strategy to predict how species will fare under climate change, suggests study

As the world heats up, and the climate shifts, life will migrate, adapt or go extinct. For decades, scientists have deployed a specific method to predict how a species will fare during this time of great change. But according to new research, that method might be producing result … | Continue reading


@phys.org | 11 months ago

Mesopotamian bricks unveil the strength of Earth's ancient magnetic field

Ancient bricks inscribed with the names of Mesopotamian kings have yielded important insights into a mysterious anomaly in Earth's magnetic field 3,000 years ago, according to a new study involving University College London researchers. | Continue reading


@phys.org | 11 months ago

Wearable sensors for advanced plant phenotyping

In response to increasing global food demands, improving crop yields through efficient phenotyping is imperative. Optical imaging-based phenotyping has markedly progressed plant breeding and crop management, yet encounters limitations in spatial resolution and accuracy due to its … | Continue reading


@phys.org | 11 months ago

Insights from the Global Wheat Challenge on deep learning and dataset diversity

Crowdsourcing has become pivotal in scientific research, particularly in data-intensive fields like plant phenotyping, leveraging platforms like Kaggle for data analysis and machine learning challenges. | Continue reading


@phys.org | 11 months ago

Machine learning unveils new insights into stress responses for plant health diagnosis

Leaf color patterns, influenced by factors such as leaf age and environmental stress, serve as indicators of plant health in agriculture. The VIS-NIR-SWIR sensor, though effective in measuring these patterns with high resolution, has been limited to assessing general plant health … | Continue reading


@phys.org | 11 months ago

Research uncovers the power of narrative in selling 'unconventional' products

An entrepreneur's challenge is to find a gap in the market, or challenge norms to create a new one. Without broad appeal or specialist knowledge among consumers, this can often become a losing battle even if a new invention or product is highly practical or serves a market need. | Continue reading


@phys.org | 11 months ago

COP28: We need a reality check on hopes for carbon capture and removal, experts say

The potential role of innovative technologies that remove carbon dioxide from the atmosphere in combating climate change has an understandable popular appeal. | Continue reading


@phys.org | 11 months ago

Farmers impoverished by climate change make 'lose–lose' choices, says researcher

Climate change is pushing farmers in the Global South towards short-term choices that further increase their vulnerability, research involving a Bayes Business School academic suggests. | Continue reading


@phys.org | 11 months ago

RGB imaging and neural networks unveil seasonal oil and phenol variations for olive crop quality assessment

Olive oil, renowned for its antioxidants like phenolic compounds, plays a pivotal role in the global olive crop. The concentration of oil and phenols in olives, varying seasonally, significantly affects crop profitability and quality, dictating the optimal harvest time. | Continue reading


@phys.org | 11 months ago

Weather in the solar system can teach us about weather on exoplanets

The way astronomers study planets in our own solar system is surprisingly similar to the way they study exoplanets, despite the latter being orders of magnitude more distant. The key is spectroscopy—examining the wavelengths of light that reach a telescope from a planet's atmosph … | Continue reading


@phys.org | 11 months ago

Surface of Saturnian moon Enceladus shields buried organics

The Saturnian moon Enceladus presents a unique opportunity in our solar system to search for evidence of life, given its habitable ocean and plume that deposits organic-bearing ocean material onto the surface. | Continue reading


@phys.org | 11 months ago

Gender gap in prokaryotes: Only 14.8% of bacteria and archaea named after women

In microbiology, microorganisms may be named after well-known scientific personalities to honor them. Such eponyms are common in the natural sciences, such as pasteurization (after the microbiologist Louis Pasteur). | Continue reading


@phys.org | 11 months ago

Could there be a black hole inside the sun?

It's a classic tale of apocalyptic fiction. The sun, our precious source of heat and light, collapses into a black hole. Or perhaps a stray black hole comes along and swallows it up. The End is Nigh! If a stellar-mass black hole swallowed our sun, then we'd only have about eight … | Continue reading


@phys.org | 11 months ago

What's the source of binary rogue planets?

The James Webb Space Telescope (JWST) is already making great strides in helping us to unravel the mysteries of the universe. Earlier this year, hundreds of rogue planets were discovered in the Orion Nebula. The real surprise to this discovery was that 9% of the planets were pair … | Continue reading


@phys.org | 11 months ago

Why the American technological war against China could backfire

The technological war waged by the United States against China has the potential to backfire, supercharging China's creation of an independent computer chip industry that would directly compete with American manufacturers. | Continue reading


@phys.org | 11 months ago

Multispectral imaging unlocks genetic secrets of Phedimus plants for rooftop gardening

Ornamental plants, valued for their varied morphological characteristics, are increasingly used in urban greening initiatives such as rooftop greening. But this application presents challenges like limited soil depth and no irrigation, requiring plants such as the Phedimus specie … | Continue reading


@phys.org | 11 months ago

Crop phenotyping research: Self-supervised deep learning enhances green fraction estimation in rice and wheat

The accurate measurement of the green fraction (GF), a critical photosynthetic trait in crops, typically relies on RGB image analysis employing segmentation algorithms to identify green pixels within the crop. Traditional methods have limitations in accuracy due to environmental … | Continue reading


@phys.org | 11 months ago

Novel lightweight deep learning models unveiled for multi-crop protection and plant disease diagnosis

Swift plant disease diagnosis is vital to prevent extensive production losses and uphold food security. Recently, object detection-based methods using deep learning have shown promise in accurately identifying and locating crop diseases. | Continue reading


@phys.org | 11 months ago

'Technostress' and the role of the welfare state

Technological change is currently driving fundamental changes to the world of work—with significant consequences for social inequality. Against this backdrop, the interdisciplinary research project "Digitalization, Automation and the Future of Work in Post-Industrial Welfare Stat … | Continue reading


@phys.org | 11 months ago

'Teleporting' images across a network securely using only light

Nature Communications published research by an international team from Wits and ICFO- The Institute of Photonic Sciences, which demonstrates the teleportation-like transport of "patterns" of light—this is the first approach that can transport images across a network without physi … | Continue reading


@phys.org | 11 months ago

Hubble looks at a late-type galaxy

This NASA Hubble Space Telescope image features NGC 2814, an irregular galaxy that lies about 85 million light-years from Earth. In this image, which was captured using Hubble's Advanced Camera for Surveys, the galaxy appears to be quite isolated: visually, it looks a little like … | Continue reading


@phys.org | 11 months ago

Q&A: Why small organisms can make big impacts on climate, emissions

This week, representatives from nearly 200 countries reached an agreement at the COP28 climate summit in Dubai to begin reducing global consumption of fossil fuels in efforts to reduce carbon emissions and stave off the worst-case scenarios of climate change. | Continue reading


@phys.org | 11 months ago

Consumer confusion still hindering recycling, finds survey

A new survey of 2,000 European consumers reveals persistent confusion around recycling food packaging, despite sustainability efforts by brands. | Continue reading


@phys.org | 11 months ago

Can software tools help students avoid distraction during digital learning?

Those who learn digitally are quickly distracted. This is because the devices used offer many opportunities to pass the time in other ways. Meanwhile, a large number of software applications have been designed to help you stay focused. But how are these self-control tools used an … | Continue reading


@phys.org | 11 months ago

Scientists collect aardvark poop to understand how the species is impacted by climate in Africa

In a first-of-its-kind study of aardvarks, Oregon State University researchers spent months in sub-Saharan Africa collecting poop from the animal and concluded that aridification of the landscape is isolating them, which they say could have implications for their long-term surviv … | Continue reading


@phys.org | 11 months ago

New ecosystem mapping workflow tackles unique challenges of Antarctic continent

A study conducted by QUT researchers has developed a pioneering ecosystem mapping workflow that combines drones, advanced imaging techniques, and machine learning to map and monitor vegetation in Antarctica's protected regions with unprecedented accuracy. | Continue reading


@phys.org | 11 months ago

Researchers: Genetically modified crops aren't a solution to climate change, despite what the biotech industry says

The European Commission launched a proposal in July 2023 to deregulate a large number of plants manufactured using new genetic techniques. | Continue reading


@phys.org | 11 months ago

If a tree burns in Canada's unmanaged forest, does anyone count the carbon?

Earlier this fall, a commentary in the journal Communications Earth & Environment argued for a change to the implementation of the Paris Agreement's reporting mechanisms. The authors called for all countries to report carbon emissions and removals taking place across their entire … | Continue reading


@phys.org | 11 months ago

Paying people to replant tropical forests and letting them harvest the timber can pay off

Tropical forest landscapes are home to millions of Indigenous peoples and small-scale farmers. Just about every square meter of land is spoken for, even if claims are not formally recognized by governments. | Continue reading


@phys.org | 11 months ago

History and contents of the universe can be determined using radio telescopes on the moon, researchers say

A study from Tel Aviv University has predicted for the first time the groundbreaking results that can be obtained from a lunar-based detection of radio waves. The study's findings show that the measured radio signals can be used for a novel test of the standard cosmological model … | Continue reading


@phys.org | 11 months ago

University isn't right for everyone. Pushing young people to go can have devastating effects, say researchers

(Names have been changed to protect identities.) | Continue reading


@phys.org | 11 months ago

Viewpoint: Private landholders control 60% of the Australian continent—so let's get them involved in nature protection

As the federal government attempts a major overhaul of national environment law, all options must be on the table to prevent the fast deterioration of Australia's natural places. And more than ever before, the efforts of private landholders should be front and center. | Continue reading


@phys.org | 11 months ago

Genetic sequencing uncovers unexpected source of pathogens in floodwaters

Researchers report in the journal Geohealth that local rivers and streams were the source of the Salmonella enterica contamination along coastal North Carolina after Hurricane Florence in 2018—not the previously suspected high number of pig farms in the region. | Continue reading


@phys.org | 11 months ago

A new strategy for making and manipulating higher-temperature superconductors

Superconductors have intrigued physicists for decades. But these materials, which allow the perfect, lossless flow of electrons, usually only exhibit this quantum-mechanical peculiarity at temperatures so low—a few degrees above absolute zero—as to render them impractical. | Continue reading


@phys.org | 11 months ago

Coral atoll islands may outpace sea-level rise with local ecological restoration, scientists say

Ecological restoration may save coral atoll islands from the rising seas of climate change, according to an international team of scientists, conservationists, and an indigenous leader. | Continue reading


@phys.org | 11 months ago

Exoplanets' climate: It takes nothing to switch from habitable to hell, say researchers

The Earth is a wonderful blue and green dot covered with oceans and life, while Venus is a yellowish sterile sphere that is not only inhospitable but also sterile. However, the difference between the two is only a few degrees in temperature. A team of astronomers from the Univers … | Continue reading


@phys.org | 11 months ago

Photodynamic action weakens resistance to antibiotics in bacteria that attack airways

The development of antibiotics to combat multidrug-resistant bacteria, especially those that infect the airways, has been increasingly tricky, and some scientists have opted to try to weaken the bacteria so that the available therapeutic substances are made more effective. | Continue reading


@phys.org | 11 months ago