World's most complex microparticle: A synthetic that outdoes nature's intricacy
Synthetic microparticles more intricate than some of the most complicated ones found in nature have been produced by a University of Michigan-led international team. They also investigated how that intricacy arises and devised a way to measure it.
Great Lakes get extra funds for cleanups, invasive species
Additional funds provided by Congress for Great Lakes environmental improvements will be used to hasten cleanups of highly toxic sites and step up work on other longstanding forms of pollution, federal officials said Thursday.
No social distancing in space: New crew greeted with hugs
Three astronauts flew to the International Space Station on Thursday, departing the virus-plagued planet with little fanfare and no family members at the launch site to bid them farewell.
Now metal surfaces can be instant bacteria killers
Bacterial pathogens can live on surfaces for days. What if frequently touched surfaces such as doorknobs could instantly kill them off?
New images reveal fine threads of million-degree plasma woven throughout the Sun's atmosphere
Researchers at the University of Central Lancashire (UCLan) unveil highest-ever resolution images of the Sun from NASA's solar sounding rocket mission
Ordering of atoms in liquid gallium under pressure
Liquid metals and alloys have exceptional properties that make them suitable for electrical energy storage and generation applications.
New study finds EPA mercury analysis is 'seriously flawed'
A new study by experts from prominent academic institutions finds that an EPA cost-benefit analysis of its Mercury and Air Toxics Standards is "seriously flawed." The authors assert that the analysis disregards public health benefits, recent scientific findings and transformative change in the electric sector over the past decade. The analysis in question was used to justify a proposed rollback...
Rethinking biosecurity governance
Perhaps the most important lesson we can learn from the current coronavirus pandemic is how to learn future lessons without having to experience a pandemic, whether natural in origin or made by humans. To do so, we need to change how we think about the governance of biology.
Researchers develop one-way street for electrons
Researchers at the University of North Carolina at Chapel Hill made a one-way street for electrons that may unlock the ability for devices to process ultra-high-speed wireless data and simultaneously harvest energy for power. The researchers did this by shaping silicon on a microscopic scale to create a funnel, or "ratchet," for electrons.
Astronomers measure wind speed on a brown dwarf
Astronomers have used the National Science Foundation's Karl G. Jansky Very Large Array (VLA) and NASA's Spitzer Space Telescope to make the first measurement of wind speed on a brown dwarf—an object intermediate in mass between a planet and a star.
Ancient teeth from Peru hint now-extinct monkeys crossed Atlantic from Africa
Four fossilized monkey teeth discovered deep in the Peruvian Amazon provide new evidence that more than one group of ancient primates journeyed across the Atlantic Ocean from Africa, according to new USC research just published in the journal Science.
Making sense of scents: 3-D videos reveal how the nose detects odor combinations
Every moment of the day we are surrounded by smells. Odors can bring back memories, or quickly warn us that food has gone bad. But how does our brain identify so many different odors? And how easily can we untangle the ingredients of a mixture of odors? In a new study in mice published today in Science, Columbia scientists have taken an important step toward answering these questions, and the...
Long-living tropical trees play outsized role in carbon storage
A group of trees that grow fast, live long lives and reproduce slowly account for the bulk of the biomass—and carbon storage—in some tropical rainforests, a team of scientists says in a paper published this week in the journal Science. The finding that these trees, called long-lived pioneers, play a much larger role in carbon storage than previously thought may have implications in efforts to...
NASA continues tracking Tropical Cyclone Harold's excessive rainfall
powerful Tropical Cyclone Harold from the Solomon Islands to the island of Tonga in the South Pacific. Satellite data was used to calculate the rainfall generated as Harold moved through the Southern Pacific Ocean. NASA also provided infrared imagery on Harold.
To make or to break: Novel reversible technique produces acyl fluoride using rare metal
Acyl fluorides are organic compounds that contain a fluorine atom in their structure. These compounds have recently gained much attention in transition-metal catalysis due to their stability and selective reactivity. However, their commercial production remains a challenge. A group of researchers in Tokyo have found a way to generate complex acyl fluorides from widely available acyl fluorides...
Space station crew dock at ISS after virus-hit build up
A three-man crew docked successfully at the International Space Station Thursday, leaving behind a planet overwhelmed by the coronavirus pandemic.
Coronavirus forces new approaches to fighting wildfires
They are two disasters that require opposite responses: To save lives and reduce the spread of COVID-19, people are being told to remain isolated. But in a wildfire, thousands of firefighters must work in close quarters for weeks at a time.
Global warming to cause 'catastrophic' species loss: study
Global warming will cause "catastrophic" biodiversity loss across the world if greenhouse gas emissions aren't curbed, with some ecosystems liable to collapse as soon as 2030, according to new research into where and when die-offs may occur.
Machine learning reveals new candidate materials for biocompatible electronics
Scientists and engineers are on a quest to develop electronic devices that are compatible with our bodies: think of materials that can help wire neurons back together after brain injuries, or diagnostic tools that can easily be absorbed within the body.
New isomer separation method a boon for research on protein oxidation
Proteins are made up of long chains of amino acids, and most proteins have one or more of the sulfur-containing amino acid methionine. Oxidation of the sulfur atom in methionine is an important biomolecular reaction that can have a wide range of biological consequences depending on the context and the protein involved.
Days after Idaho's earthquake, experts seek answers about historic, unexpected event
About half an hour before the ground began shaking last week, Glenn Thackray had fired off an email to a colleague about launching more research on the Sawtooth Fault, a tectonic plate boundary in Central Idaho that Thackray discovered a decade ago.
Chemists develop noble metal aerogels for electrochemical hydrogen production
Electrocatalysis is one of the most studied topics in the field of material science, because it is extensively involved in many important energy-related processes, such as the oxygen reduction reaction (ORR) for fuel cells, the hydrogen evolution reaction (HER) for green hydrogen production, and the oxygen evolution reaction (OER) for metal-air batteries. Noble metal aerogels (NMAs) emerge as a...
Engineered enzyme able to break down PET in ten hours
A team of researchers from TBI, Université de Toulouse, CRITT Bio-Industries and Carbios, Biopôle Clermont Limagne, has engineered a commonly known enzyme to efficiently break the chains that hold the building blocks of polyethylene terephthalate (PET) together. In their paper published in the journal Nature, the group describes how they developed the enzyme and how well it worked in a test...
Influence of the diagenetic water medium on the hydrogen isotope of sedimentary N-alkanes
The hydrogen isotopic composition of sedimentary n-alkanes can be used to study paleoclimate, organic matter sources and petroleum genesis. However, the hydrogen isotopic composition of sedimentary n-alkanes is affected by many factors, and studying them is mainly involves the isotopic fractionation relationship between the hydrogen isotopes of sedimentary n-alkanes and the rainwater in the study...
A plant defense metabolite specifically suppresses virulence of pathogenic bacteria
When attacked by pathogenic microbes, plants protect themselves by deploying numerous secondary metabolites inhibitory to the pathogen. These metabolites are thought to nonspecifically inhibit both pathogenic and beneficial microbes, which is not desirable for plants.