The US Air Force said Wednesday it would be sending its high-tech X-37B space drone back into orbit this month—the sixth trip for the reusable vehicle that maneuvers around the Earth on secretive missions.

New research to be published in the INFORMS journal Management Science has found popular rideshare platforms exhibit racial and other biases that penalize under-represented minorities and others seeking to use their services.

Scientists have been studying cyanobacteria and its many potential applications for decades, from cutting CO2 emissions to creating a substitute for oil-based plastics, but there wasn't a deep understanding of the full life cycle and metabolism of specialized compartments within these common bacteria—until now.

A new report offers insights that can help clinicians distinguish between patients with COVID-19 infections and those with other conditions that may mimic COVID-19 symptoms.

Global warming is approaching a tipping point that during this century could reawaken an ancient climate pattern similar to El Niño in the Indian Ocean, new research has found.

A new study further explores the proliferation of the most commonly occurring duck-billed dinosaur of the ancient Arctic as the genus Edmontosaurus. The findings reinforce that the hadrosaurs -- dubbed 'caribou of the Cretaceous' -- had a geographical distribution of approximately 60 degrees of latitude, spanning the North American West from Alaska to Colorado.

Scientists have discovered a process of physics that enables low-power nanolasers to be produced in 2D semiconductor materials. Understanding the physics behind lasers at nanoscale and how they interact with semiconductors can have major implications for high-speed communication channels for supercomputers and data centers.

Spoiling foods, souring wine and worsening wounds have a common culprit -- a process called oxidation. Although the ill effects of these chemical reactions can be curtailed by antioxidants, creating a sturdy platform capable of providing prolonged antioxidant activity is an ongoing challenge.

Scientists have been studying cyanobacteria and its many potential applications for decades, from cutting CO2 emissions to creating a substitute for oil-based plastics, but there wasn't a deep understanding of the full life cycle and metabolism of specialized compartments within these common bacteria -- until now.

The COVID-19 pandemic has placed unprecedented pressure on societies worldwide, given the pandemic's rapid, often deadly spread. In health care, the pandemic has raised the pressing question of how society should allocate scarce resources during a crisis.

In the tropical atmosphere, cold air rises due to an overlooked effect -- the lightness of water vapor. This effect helps to stabilize tropical climates, and the impacts of a warming climate would be much worse without it.

Scientists demonstrate a completely new way of treating snakebites. The team have shown that the repurposing of an existing medicine, commonly used to treat mercury poisoning, is an effective oral therapy for the treatment of certain hemotoxic snakebites.

Researchers have discovered that male treefrogs reduce their attractiveness to predators and parasites by overlapping their mating calls with their neighbors.

Adding yoga to your regularly prescribed migraine treatment may be better than medication alone, according to a new study. The new research suggests yoga may help people with migraines have headaches that happen less often, don't last as long and are less painful.

Clinicians from two hospitals in Boston report that the majority of even the sickest patients with COVID-19 -- those who require ventilators in intensive care units -- get better when they receive existing guideline-supported treatment for respiratory failure.

Foods, such as French fries, cheese, cookies, soda, and sports and energy drinks, are commonly found in the diets of United States adults with inflammatory bowel disease, according to a new study.

In his latest line of research, Cun-Zheng Ning, a professor of electrical engineering in the Ira A. Fulton Schools of Engineering at Arizona State University, and his peers explored the intricate balance of physics that governs how electrons, holes, excitons and trions coexist and mutually convert into each other to produce optical gain. Their results, led by Tsinghua University Associate...

Sonar is commonly used to map the ocean floor, and seabed composition (e.g. mud, clay or rock) affects the way the sound is reflected back. Salinity, depth and water temperature also affect how sound waves are propagated through water.

New findings about critical cellular structures have upended common assumptions about their formation and composition and provided new insight how molecular machines are built in living cells.

Spoiling foods, souring wine and worsening wounds have a common culprit—a process called oxidation. Although the ill effects of these chemical reactions can be curtailed by antioxidants, creating a sturdy platform capable of providing prolonged antioxidant activity is an ongoing challenge.

From avocado plants to baker's yeast, humans to zebras, sexually reproducing organisms must create germ cells that contain half the number of chromosomes found in a typical body cell. When these germ cells—such as sperm and egg—come together during fertilization, the regular number of chromosomes is restored.

The technology – developed and patented from the laboratory of Nien-Hwa Linda Wang, Purdue's Maxine Spencer Nichols Professor of Chemical Engineering – has successfully shown to separate the rare earth metals without the devastating environmental effects of conventional acid based methods with high yield and purity.

Colleagues raise concerns after Prof Neil Ferguson stepped down from advisory roleCoronavirus – latest updatesSee all our coronavirus coverageScientists who advise the government on its coronavirus strategy have warned they are being drawn into politics after the leading infectious disease modeller Prof Neil Ferguson stepped down as one of the cabinet’s most prominent advisers.Ferguson, the...

Smartphones can be used to digitally trace Covid-19. But not if the public don’t download an app over privacy fears – or find it won’t work on their deviceThe idea of the NHS tracing app is to enable smartphones to track users and tell them whether they interacted with someone who had Covid-19. Yet this will work only if large proportions of the population download the app. No matter how...

Conventional knowledge has it that warm air rises while cold air sinks. But a study from the University of California, Davis, found that in the tropical atmosphere, cold air rises due to an overlooked effect—the lightness of water vapor. This effect helps to stabilize tropical climates and buffer some of the impacts of a warming climate.

Global warming is approaching a tipping point that during this century could reawaken an ancient climate pattern similar to El Niño in the Indian Ocean, new research led by scientists from The University of Texas at Austin has found.

Temperate and tropical dry forests—not just rainforests—are home to thousands of unique tree species, a new study reveals.

A new analysis of reef restoration projects in the Florida Keys National Marine Sanctuary suggests they could play a key role in helping staghorn coral (Acropora cervicornis) recover from being endangered. Matthew Ware of Florida State University in Tallahassee and colleagues present these findings in the open-access journal PLOS ONE on May 6, 2020.

A new study by an international team from the Perot Museum of Nature and Science in Dallas and Hokkaido University and Okayama University of Science in Japan further explores the proliferation of the most commonly occurring duck-billed dinosaur of the ancient Arctic as the genus Edmontosaurus. The findings also reinforce that the hadrosaurs—known as the "caribou of the Cretaceous"—had a huge...

Focused ultrasound, the researchers hope, could revolutionize treatment for conditions from Alzheimer's to epilepsy to brain tumors -- and even help repair the devastating damage caused by stroke.

Obese Europeans who are treated with cholesterol lowering drugs have not only lower values of blood LDL cholesterol and markers of inflammation but in addition a more healthy gut bacteria profile than those obese who are not prescribed statins.

Your house number could be the key to the safe relaxation of COVID-19-related restrictions if governments follow a new exit strategy, which proposes the use of an 'odds-and-evens' approach to allowing people to head back to work and enjoy other activities after weeks of lockdown.

Chemists have developed sponges to capture various target substances, like gold, mercury and lead, dissolved in solution. The sponges are actually porous crystals called metal organic frameworks, and now one exists for capturing toxic hexavalent chromium from water.

This research shows how different populations of people share most of the genetic susceptibilities to developing type 2 diabetes but do have some different genetic variations that can make them more or less susceptible to developing the condition.

Scientists set out to investigate a potential role of the gut microbiota in the development of cardio-metabolic diseases. They ended up identifying the common cholesterol-lowering drug statins as a potential microbiota-modulating therapeutic.

People who attended religious services at least once a week were significantly less likely to die from 'deaths of despair,' including deaths related to suicide, drug overdose, and alcohol poisoning, according to new research.

Researchers say a fossil found on the Jurassic coast of southern England in the 19th century demonstrates the world's oldest known example of a squid-like creature attacking its prey.

New study indicates the increase in rainfall forecast by global climate models is likely to hasten the release of carbon dioxide from tropical soils, further intensifying global warming by adding to human emissions of this greenhouse gas into Earth's atmosphere.

Researchers have uncovered how bats can carry the Middle East respiratory syndrome (MERS) coronavirus without getting sick -- research that could shed light on how coronaviruses make the jump to humans and other animals.