In an animal model for COVID-19 that shares important features of human disease, scientists show that prior infection with the SARS-CoV-2 virus provides protection against reinfection, and treatment with convalescent serum limits virus replication in their lungs.

Archaeologists have discovered a major new prehistoric monument only a short distance away from Stonehenge. Fieldwork and analysis have revealed evidence for 20 or more massive, prehistoric shafts, measuring more than 10 metres in diameter and 5 metres deep. These shafts form a circle more than 2 kilometres in diameter and enclose an area greater than 3 square kilometres around the Durrington...

Engineers have created a light-powered catalyst that can break the strong chemical bonds in fluorocarbons, a group of synthetic materials that includes persistent environmental pollutants.

A new precision medicine targeting cancer's ability to repair its DNA has shown promising results in the first clinical trial of the drug class. The new study, designed to test the drug's safety, found that half of patients given the new drug either alone or with platinum chemotherapy saw their cancer stop growing, and two patients saw their tumours shrink or disappear completely.

Researchers uncovered in mice how a molecule involved in cells' response to stress determines whether macrophages promote inflammation in the tumor microenvironment. Inflammation is known to promote tumor growth, making this molecule an attractive target for drug development.

As concern grows among environmentalists and consumers about micro- and nanoplastics in the oceans and in seafood, they are increasingly studied in marine environments. But little was known about nanoplastics in agricultural soils. Researchers now have direct evidence that nanoplastics are internalized by terrestrial plants.

Scientists and historians have found evidence connecting an unexplained period of extreme cold in ancient Rome with an unlikely source: a massive eruption of Alaska's Okmok volcano, located on the opposite side of the Earth. A new study uses an analysis of tephra (volcanic ash) found in Arctic ice cores to link this period of extreme climate in the Mediterranean with the caldera-forming eruption...

Smoking, divorce and alcohol abuse have the closest connection to death out of 57 social and behavioural factors analyzed in this study. The researchers analyzed data collected from 13,611 adults in the U.S. between 1992 and 2008, and identified which factors applied to those who died between 2008 and 2014. They intentionally excluded biological and medical factors.

Engineers have designed a super-strong, detachable adhesive that may someday replace surgical sutures.

Porous rock containing oil and natural gas are buried so deep inside the earth that shale operators rely on complex models of the underground environment to estimate fossil fuel recovery. These simulations are notoriously complex, requiring highly-skilled operators to run them. These factors indirectly impact the cost of shale oil production and ultimately, how much consumers pay for their fuel.

A study identified which pairs of atoms in a catalyst nanoparticle are most active in a reaction that breaks down a harmful exhaust gas in catalytic converters. The most active particles contained the biggest proportion of one particular atomic configuration -- one where two atoms, each surrounded by seven neighboring atoms, form pairs to carry out the reaction steps. The results are a step toward...

Laser light traveling through ornately microfabricated glass has been shown to interact with itself to form self-sustaining wave patterns called solitons.

Just as a meter stick with hundreds of tick marks can be used to measure distances with great precision, a device known as a laser frequency comb, with its hundreds of evenly spaced, sharply defined frequencies, can be used to measure the colors of light waves with great precision.

A new study estimates that the number of early COVID-19 cases in the U.S. may have been more than 80 times greater and doubled nearly twice as fast as originally believed.

Using an enzyme inhibitor in meniscus cells, a new study was able to soften their nucleus and promote access to previously impassible areas.

A recent study used a novel combination of statistical methods and an exceptional data set collected by hunters to assess the role of protected areas for carnivore conservation in Finland.

One goal of science is to find physical descriptions of nature by studying how basic system components interact with one another. For complex many-body systems, effective theories are frequently used to this end. They allow describing the interactions without having to observe a system on the smallest of scales. Physicists have developed a new method that makes it possible to identify such...

Biophysicists have developed a high-throughput super-resolution microscope to probe nanoscale structures and dynamics of mammalian cells, showing in unprecedented detail the twists and turns of an organelle important for cell division.

Whilst most organisms try to stop their DNA from mutating, scientists from the UK and China have discovered that a common fungus found on bread actively mutates its own DNA as a way of fighting virus-like infections.

Researchers discovered a new way to engineer optoelectronic devices by stretching a two-dimensional material on top of a silicon photonic platform.

As China upgrades pangolins to the highest protected status level, an alternative approach to using long standing forensic methods is helping wildlife crime investigators disrupt poachers and animal traffickers in an effort to bring them to justice.

Instead of responding to each flight delay as if it were an isolated event, airlines should consider the likelihood of potential disruptions ahead, researchers report. They developed a new approach that allows airlines to respond to flight delays and cancellations while also incorporating information about likely disruptions later the same day.

Scientists have completed large-scale tests on a new type of five-minute urine test that measures the health of a person's diet, and produces an individual's unique urine 'fingerprint'.

An undergraduate student has just published a description of 18 new species of aquatic water beetle from the genus Chasmogenus.