Human sperm don’t swim the way that anyone had thought

High-speed 3-D microscopy and mathematical analyses reveal that rolling and lopsided tail flicks keep the cells swimming in a straight line. | Continue reading | 9 days ago

To prevent the next pandemic, we might need to cut down fewer trees

Investing in halting deforestation and limiting the wildlife trade could be a cost-effective way to reduce the risk of pandemics, a new analysis finds. | Continue reading | 16 days ago

Astronomers Have Found the Edge of the Milky Way at Last

Computer simulations and observations of nearby galaxies let astrophysicists put a firm number on the Milky Way's size. | Continue reading | 28 days ago

The universe might have a fundamental clock that ticks very, very fast

A theoretical study could help physicists searching for a theory of quantum gravity. | Continue reading | 28 days ago

Calculating a dog’s age in human years is harder than you think

People generally convert a dog’s age to human years by multiplying its age by seven. But a new study shows the math is way more complex. | Continue reading | 1 month ago

The most comprehensive X-ray map of the sky ever made

A new X-ray map of the entire sky, using data from the eROSITA telescope’s first full scan, looks deeper into space than any other of its kind. | Continue reading | 1 month ago

LIGO and Virgo detected a collision between a black hole and a mystery object

The first evidence of an object more massive than any neutron star and more lightweight than any black hole has astronomers wondering what it is. | Continue reading | 1 month ago

Fish eggs can hatch after being eaten and pooped out by ducks

In the lab, a few carp eggs survived and even hatched after being pooped out by ducks. The finding may help explain how fish reach isolated waterways. | Continue reading | 1 month ago

A new device can produce electricity using shadows

if __name__ == ‘__main__’ | Continue reading | 1 month ago

The way the coronavirus messes with smell hints at how it affects the brain

Conflicting reports offer little clarity about whether COVID-19 targets the brain. | Continue reading | 1 month ago

A nose-horned dragon lizard lost to science for over 100 years has been found

It’s now known that a Modigliani’s lizard, first found in 1891 in Indonesia, is bright green but can shift shades like a chameleon. | Continue reading | 2 months ago

The missing half of ordinary matter in the universe has turned up

Astronomers have used fast radio bursts as cosmic weigh stations to tease out where the universe’s “missing matter” resides. | Continue reading | 2 months ago

Scientists sometimes conceal a lack of knowledge with vague words

Life, time, intelligence — plenty of terms used in science have imprecise definitions. | Continue reading | 2 months ago

Physicists exploit a quantum rule to create a Pauli crystal

Cold atoms can form crystals as a result of the Pauli exclusion principle. | Continue reading | 2 months ago

New data suggest people aren’t getting reinfected with the coronavirus

People who recover from COVID-19 but later test positive again for the coronavirus don’t carry infectious virus, a study finds. | Continue reading | 2 months ago

Quantum mysteries dissolve if possibilities are realities (2017)

Quantum mysteries can be avoided if reality encompasses possibilities as well as actualities, a new paper proposes. | Continue reading | 3 months ago

Claude Shannon’s information theory built the foundation for the digital era

Claude Shannon, born 100 years ago, devised the mathematical representation of information that made the digital era possible. | Continue reading | 3 months ago

It’s time to stop debating how to teach kids to read and follow the evidence

Most children need help learning to read, but there’s long-standing disagreement on how best to help them. Decades of research have identified the most effective approaches. | Continue reading | 3 months ago

How large a gathering is too large during the coronavirus pandemic?

Mathematical models explain why large gatherings are especially dangerous in an epidemic, and identify how large is too large. | Continue reading | 4 months ago

Einstein’s letters illuminate a mind grappling with quantum mechanics

The latest volume of Einstein’s papers covers the infancy of quantum mechanics and new challenges to the theory of relativity. | Continue reading | 4 months ago

Legos may take hundreds of years to break down in the ocean

Sturdy types of plastic may persist in seawater for much long than scientists previously thought. | Continue reading | 4 months ago

Bats’ immune defenses may be why their viruses can be so deadly to people

A new study of cells in lab dishes hints at why viruses found in bats tend to be so dangerous when they jump to other animals. | Continue reading | 4 months ago

Mortality Rate of Covid-19 Is 0.5%, Much Lower Than CDC / WHO Claims

Infections and deaths on the Diamond Princess suggest that, in the real world, 0.5 percent of COVID-19 infections in China end in death. | Continue reading | 4 months ago

China’s moon rover revealed what lies beneath the lunar farside

China’s Yutu-2 rover found layers of fine sand and coarse gravel under the surface of the moon’s farside. | Continue reading | 5 months ago

Ancient ‘megasites’ may reshape the history of the first cities

At least two ancient paths to urban development existed, some archaeologists argue. | Continue reading | 5 months ago

A quantum technique highlights math’s mysterious link to physics

Verifying proofs to very hard math problems is possible with infinite quantum entanglement. | Continue reading | 5 months ago

Turning human bodies into compost works, a small trial suggests

Experiments test the effectiveness and safety of human composting, which may soon be an alternative to burial or cremation in Washington state. | Continue reading | 5 months ago

Beaked whales may evade killer whales by silently diving in sync

To slip past predators, beaked whales appear to synchronize their deep dives, staying silent while not hunting and ascending far from where they dove. | Continue reading | 6 months ago

Climate change may be speeding up ocean circulation

Circulation in the top 2,000 meters of the world’s oceans has increased as a result of faster winds around the globe, a study suggests. | Continue reading | 6 months ago

Scientists cooled a nanoparticle to the quantum limit

Physicists decreased a nanoparticle’s motion to the lowest level allowed by quantum mechanics. | Continue reading | 6 months ago

Can the coronavirus outbreak be contained?

More than 50 million people are quarantined in China, but whether the strategy will stem the epidemic’s spread is unclear. | Continue reading | 6 months ago

Bacteria Create Flower Art

Different types of microbes growing in lab dishes can push each other to make floral patterns. | Continue reading | 6 months ago

Stress turns hair gray by triggering the body's fight-or-flight response

A study in mice finds stress responses deplete cells that give hair its pigment, making the strand white. | Continue reading | 6 months ago

Hairy cells in the nose called brush cells may be involved in causing allergies

Some hairy cells in the nose may trigger sneezing and allergies to dust mites, mold and other substances, new work with mice suggests. | Continue reading | 6 months ago

How to restore the legendary acoustics of Notre Dame

Using heritage acoustics, researchers hope to help restore the sound of Paris's Notre Dame cathedral. | Continue reading | 7 months ago

Stick-toting puffins offer the first evidence of tool use in seabirds

Puffins join the ranks of tool-using birds after researchers document two birds using sticks to groom, a first for seabirds. | Continue reading | 7 months ago

Ketamine may help treat alcoholism by weakening memory

Ketamine may weaken wobbly memories of drinking, a trick that might ultimately be useful for treating alcohol addiction. | Continue reading | 8 months ago

Julia Robinson helped define the limits of mathematical knowledge

Born 100 years ago, Julia Robinson played a key role in solving Hilbert’s 10th problem. | Continue reading | 8 months ago

Some people with half a brain have extra strong neural connections

Brain scans of six people who had half their brains removed as epileptic children show signs of compensation. | Continue reading | 8 months ago

California landfills spew high levels of climate-warming methane

Airborne remote sensing spots the Golden State’s biggest emitters of the potent greenhouse gas from the sky. | Continue reading | 8 months ago

The medieval Catholic Church may have helped spark Western individualism

Early Catholic Church decrees transformed families and may help explain why Western societies today tend to be individualistic and nonconformist. | Continue reading | 9 months ago

Bird eggs laid in cold climates are darker, which may keep eggs warm

A global survey of bird egg color reveals a simple trend: the colder the climate, the darker the egg. | Continue reading | 9 months ago

Strontium is the first heavy element detected from a neutron star merger

The discovery of strontium created inside a neutron star smashup gives the clearest picture yet of what goes on inside this chaotic environment. | Continue reading | 9 months ago

Humpback whales use their flippers and bubble ‘nets’ to catch fish

A study reveals new details of how humpback whales hunt using their flippers and a whirl of bubbles to capture fish. | Continue reading | 9 months ago

Google officially lays claim to quantum supremacy

The quantum computer Sycamore reportedly performed a calculation that even the most powerful supercomputers available can’t reproduce. | Continue reading | 9 months ago

Tiny aquatic animals secrete a compound that may help fight snail fever

A newly identified molecule from rotifers paralyzes the larvae of worms that cause schistosomiasis, which affects over 200 million people worldwide. | Continue reading | 9 months ago

Economics Nobel goes to poverty-fighting science

Three scientists share the Nobel Memorial Prize in Economic Sciences for developing real-world interventions for tackling poverty. | Continue reading | 9 months ago

A supermassive black hole shredded a star and was caught in the act

Astronomers have gotten the earliest glimpse yet of a black hole ripping up a star, a process known as a tidal disruption event. | Continue reading | 9 months ago