Retest for COVID-19 4-plus weeks after symptoms first appear to curb infection risk, say researchers

Death by Lightning Is Common for Tropical Trees

Gravity wave insights from internet-beaming balloons

Climate change could deliver more sediment and pollution to the San Francisco Bay-Delta

COVID-19 sparks 12-fold increase in remote delivery of mental health care across the US

Ambient light alters refraction in 2-D material

NASA-NOAA satellite tracking Typhoon Maysak's approach to landfall

Experimental vaccine that boosts antigen production shows promise against COVID-19

Seaport expansion costs will greatly exceed sea-level rise adaption costs through 2050

NASA analyzes typhoon Haishen's water vapor concentration

Researchers identify proteins that prevent COVID-19 transmission through the placenta

Political ads have little persuasive power: study

Novel technology for the selection of single photosynthetic cells

Has Earth's oxygen rusted the Moon for billions of years?

Heavy TV and computer use impacts children's academic results

Asphalt adds to air pollution, especially on hot, sunny days

Revolutionary quantum breakthrough paves way for safer online communication

Bering Sea ice extent is at most reduced state in last 5,500 years

Elon Musk's Pig-Brain Implant Is Still a Long Way from 'Solving Paralysis'

Plasmin could be the link between COVID-19 comorbidities and serious illness

2-D nanomaterial shows promise for high-speed electronics, quantum devices and defense tools

Did meteorite impacts help create life on Earth and beyond?

An unprecedented discovery of cell fusion

New study shows birds can learn from others to be more daring

NASA finds new Tropical Storm Nana strengthening in the Caribbean

Biological control agents can protect soybeans from sudden death syndrome

Globalization is reweaving the web of life

Researcher proposes universal mechanism for ejection of matter by black holes

Coronavirus tracing apps can save lives even with low adoption rates

NASA catches formation of Atlantic's record-breaking 15th tropical storm

Electromagnetic chirality: From fundamentals to nontraditional chiroptical phenomena

Gut microbiome composition is associated with age and memory performance in pet dogs

Oldest radiocarbon dated temperate hardwood tree in the world discovered in southern Italy

Graduate student names new trace fossil discovered during coursework

Regional variations in freshwater overconsumption

Paper ballots, risk-limiting audits can help defend elections and democracy, study finds

Strong fields and ultrafast motions—how to generate and steer electrons in liquid water

A new way of modulating color emissions from transparent films

Coronavirus: Technology helps teachers rethink distanced learning

An unprecedented discovery of cell fusion

Continuous and stable lasing achieved from low-cost perovskites at room temperature

Study details how general anesthetics and 'benzos' act on receptors in the brain

Engineers reprogram yeast cells to become microscopic drug factories

Origin of a complex life form revealed

Zooming in on dark matter

How to remove unwanted components from the cell nucleus

Parasitic plants attack crops when defending themselves from microbes

Microbial genetics: A protean pathogen

Great Barrier Reef 'glue' at risk from ocean acidification

New method of detecting illnesses including coronavirus and cystic fibrosis

Spin-galvanic effect in graphene with topological topping demonstrated

Pharma aims to make a better CBD

Nanoparticle-based computing architecture for nanoparticle neural networks

Viruses on glaciers highlight evolutionary mechanism to overcome host defenses

Teens who think their parents are loving are less likely to be cyberbullies

More nutrient reduction still needed to save lakes in China

A molecular approach to quantum computing

Early COVID-19 news coverage amplified political divide

Sheep farmers could profit by shifting to forest, research shows

New study reveals migratory habits of teenage green turtles

The impact of microplastics on soil organisms

Insights into behavior during Chimney Tops 2 fire could improve evacuation planning

Renewable energy can save the natural world, but if we're not careful, it will also hurt it

New research shows lyrebirds move more litter and soil than any other digging animal

Study shows positive impact of retaking the SAT on college enrollment outcomes

Common sunscreen ingredients dangerous for freshwater ecosystems, says study

Great Barrier Reef 'glue' at risk from ocean acidification

Mining for renewable energy could be another threat to the environment

Viruses on glaciers highlight evolutionary mechanism to overcome host defenses

Mite extinctions are occurring at least 1,000 times the 'natural' rate

Taking stock of salmon survival, dams and science

From space and in the air, NASA tracks California's wildfires

Exploring oxidative pathways in nuclear fuel

Greenland ice sheet reached tipping point 20 years ago, new study finds

Looser standards for showerheads could send a lot of water and money down the drain

Reviewing research about the evolution of complex cognition in birds

Breakthrough narrows intelligent life search in Milky Way

Finding the right emotional 'match' makes for better business relationships

New sources for rare metals vital in modern technology

US unemployment data fail to capture COVID-19's full impact – here's how to fix it fast

Remote working is here to stay – but that doesn't mean the end of offices or city centres

Podcast: How a 135-year-old law lets India shutdown the internet

Viruses could be harder to kill after adapting to warm environments

Graduate student names new trace fossil discovered during coursework

The widespread footprint of blue jean microfibers

Chinese astronomers investigate spectral behavior of gamma-ray blazar S5 0716+714

Uncovering the acoustical properties of Stonehenge

Weapons not used by U.K. officers in majority of police incidents involving force, data suggests

A 'bang' in LIGO and Virgo detectors signals most massive gravitational-wave source yet

Heaviest black hole merger is among three recent gravitational wave discoveries

Environmental factors shape ammonia-oxidizer community patterns in soils from Tibetan wetlands

Diversifying crop rotations improves environmental outcomes while keeping farms profitable

Super-resolution imaging with diagonal sampling

Scientists find new way to measure important beam property

Beavers appear to help the growth of brown trout in South America, study finds

Ancient Chinese text revealed to be an anatomical atlas of the human body

Finding magnetic eruptions in space with an AI assistant

Scriptures rarely a significant motivating factor behind violence, say researchers

Massive release of methane gas from the seafloor discovered for the first time in the Southern Hemisphere

Attacking tumours directly on identification

Latest version of climate system model shows better performance in simulation

Scientists shed light on how praying mantises use the element of surprise to survive

Making (per)waves: Space study could improve future fuels

Value-added tax cuts do not increase consumer purchasing power

For photocatalysts, standing the test of time means finding a perfect partner

Eat more to grow more arms… if you're a sea anemone

LIGO and Virgo Capture Their Most Massive Black Holes Yet

Stop Stealing Doctors from Developing Countries

Want to Talk to Aliens? Try Changing the Technological Channel beyond Radio

Apple and Google have launched coronavirus exposure notifications without an app

Common species mirror rare animals' response to global change

Two Koreas on high alert as typhoon approaches peninsula

How to get the upper body of a burrowing frog

Bus drivers more likely to let white customers ride for free: study

New index helps forecast US supply chain risks

Reef manta rays make long-term use of marine-protected areas

A disc of gas would explain mysterious light changes observed in Sagittarius constellation