Most Kids Only Get Mildly Sick From Covid-19—but Not All

Most Kids Only Get Mildly Sick From Covid-19—but Not All

The study, released on March 4 by researchers at the Harbin Institute of Technology in Shenzhen and Johns Hopkins University, used Chinese CDC data on about 1,200 people exposed to Covid-19 patients to determine if the virus infected different age groups at different rates.

The Best and Worst Browsers for Privacy, Ranked

The Best and Worst Browsers for Privacy, Ranked

Microsoft Edge received the lowest privacy rating in a recently published study that compared the user information collected by major browsers.Edge also sends the hardware UUID of the device to Microsoft and Yandex similarly transmits a hashed hardware identifier to back end servers.

How Long Does the Coronavirus Last on Surfaces?

How Long Does the Coronavirus Last on Surfaces?

And similarly, while the researchers tested how long the virus can survive in aerosols suspended in the air, they didn’t actually sample the air around infected people.

Dolphins Are Still Accidental Casualties of Tuna Fishing

Dolphins Are Still Accidental Casualties of Tuna Fishing

Dolphin numbers in the Indian Ocean may have dropped by more than 80 percent in recent decades, with an estimated 4 million small cetaceans caught as “by-catch” in commercial tuna-fishing nets since 1950, according to a study.

Wash Your Hands—but Beware the Electric Hand Dryer

Wash Your Hands—but Beware the Electric Hand Dryer

There’s been understandable blowback from the hand-dryer industry, which notes that certain studies pegging hand dryers as disease vectors were carried out by researchers who had worked as consultants for paper-towel manufacturers.

We don’t know much about lakes and climate change, says researcher

We don’t know much about lakes and climate change, says researcher

Lake scientist Piet Verburg was part of an international team of 39 researchers from 20 countries who carried out a recent review of current knowledge on how lake ecosystems respond to extreme storm events.

Data Centers Aren't Devouring the Planet's Electricity—Yet

Data Centers Aren't Devouring the Planet's Electricity—Yet

At the same time, the report warns that there’s no guarantee that the efficiency drive will continue in the face of data-hungry new technologies such as artificial intelligence and 5G.Some previous analyses have suggested data center energy use has doubled, or more, over the last decade.

Will Your Cat Eat Your Corpse?

Will Your Cat Eat Your Corpse?

While conducting a study on body decomposition, in separate incidents, forensic researchers unintentionally captured footage of two feral cats feasting on human corpses.

A Car ‘Splatometer’ Study Finds Huge Insect Die-Off

A Car ‘Splatometer’ Study Finds Huge Insect Die-Off

The survey of insects hitting car windscreens in rural Denmark used data collected every summer from 1997 to 2017 and found an 80 percent decline in abundance.

'Baby Talk' Can Help Kids Learn Language (Oh Yes It Can !)

'Baby Talk' Can Help Kids Learn Language (Oh Yes It Can !)

But it’s not all about instinct: a paper published in PNAS this week suggests that parents can be trained to improve their parentese and that this training gives their babies’ language a boost.

Want Unlimited Clean Energy? Just Drill the World's Hottest Well

Want Unlimited Clean Energy? Just Drill the World's Hottest Well

In 2017, researchers from the Iceland Deep Drilling Project, run by the Icelandic government and a consortium of national energy companies, reported they had reached supercritical fluids 3 miles beneath the surface.

Crispr'd Cells Show Promise in First US Human Safety Trial

Crispr'd Cells Show Promise in First US Human Safety Trial

Last year, each cancer patient received infusions of about 100 million of their own T cells, which had been genetically modified in a University of Pennsylvania lab.

Germany Rejected Nuclear Power—and Deadly Emissions Spiked

Germany Rejected Nuclear Power—and Deadly Emissions Spiked

The license to operate the two reactors at the Philippsburg nuclear facility expired at midnight after 35 years of providing carbon-free power to Germans living along the country’s southwestern border.

Pop Culture May Evolve at the Same Rate as Birds and Bugs

Pop Culture May Evolve at the Same Rate as Birds and Bugs

That’s the conclusion of a new study by a group of British researchers who analyzed rates of change for popular songs, English literature, scientific papers, and car design.

Cats Are Making Australia's Bushfire Tragedy Even Worse

Cats Are Making Australia's Bushfire Tragedy Even Worse

Yet another study found feral cats are highly attracted to areas that burned recently and tend to avoid ones three months or older, perhaps because vegetation has begun to grow back by that time, or they’ve simply obliterated the prey species there.

Artificial Intelligence Makes Bad Medicine Even Worse

Artificial Intelligence Makes Bad Medicine Even Worse

Google researchers made headlines early this month for a study that claimed their artificial intelligence system could outperform human experts at finding breast cancers on mammograms.Machine-enabled healthcare may bring us many benefits in the years to come, but those will be contingent on the ways in which it’s used.

The Arctic Is Warming Much Faster Than the Rest of Earth

The Arctic Is Warming Much Faster Than the Rest of Earth

Kristin Laidre, an animal ecologist at the University of Washington and a coauthor, says the melting summer sea ice is causing trouble for big mammals: polar bears, walruses, and seals.

SpaceX Will Bring the Science of Fire and Beer to the ISS

SpaceX Will Bring the Science of Fire and Beer to the ISS

SpaceX is also expected to launch 60 more of its Starlink internet satellites and conduct an in-flight abort test that will jettison its Crew Dragon capsule mid-flight, but it has not announced dates for either of these missions.

We're All 'P-Hacking' Now

We're All 'P-Hacking' Now

The p refers to the p-value, a ridiculously complicated statistical entity that’s essentially a measure of how surprising the results of a study would be if the effect you’re looking for wasn’t there.

Are Saturn’s Rings Really as Young as the Dinosaurs?

Are Saturn’s Rings Really as Young as the Dinosaurs?

Previously, planetary scientists had assumed that Saturn’s rings were as old as the solar system itself—about 4.5 billion years old.“Every new exciting result gets challenged,” said Burkhard Militzer, a planetary scientist at the University of California, Berkeley and a co-author of the Science paper.

Empathy Is Tearing Us Apart

Empathy Is Tearing Us Apart

In the first part, Americans who scored high on an empathy scale showed higher levels of “affective polarization”—defined as the difference between the favorability rating they gave their political party and the rating they gave the opposing party.

Today’s Cartoon: WebMD

Today’s Cartoon: WebMD

Every weekday, WIRED publishes a new cartoon about the worlds of science and technology.And if that's still not enough, you can find all of WIRED's cartoons in one place, right here .

NASA Is Getting Serious About an Interstellar Mission

NASA Is Getting Serious About an Interstellar Mission

Indeed, the group says that if their mission is selected by NASA it could fly as soon as 2030.“This is humanity’s first explicit step into interstellar space,” says Pontus Brandt, a physicist at the Johns Hopkins Applied Physics Laboratory who is working on the interstellar probe study.

Scientists Now Know How Sleep Cleans Toxins From the Brain

Scientists Now Know How Sleep Cleans Toxins From the Brain

Lewis outfitted the participants with an EEG cap so she could look at the electrical currents flowing through their brains.“It’s a fantastic paper,” says Maiken Nedergaard, a neuroscientist at the University of Rochester who led the 2013 study that first described how sleep can clear out toxins in mice.

Ford Screens Go Big, a WhatsApp Hacking Case, and More News

Ford Screens Go Big, a WhatsApp Hacking Case, and More News

That's how long scientists allowed frozen sperm to be in microgravity as part of a study on what human reproduction would look like in space.If you were buying a new car, wouldn't you want to have the best features, safety, and value for your money?

Danger for Pedestrians, a Tesla Profit, and More Car News This Week

Danger for Pedestrians, a Tesla Profit, and More Car News This Week

On the last point: Some engineers are trying to build more fun, friendly, and maybe even safer crosswalks, but the federal government—the same one that put out those safety stats!—is not yet convinced that kind of street design works.

Your Secret Uber Tipping Behavior, Exposed

Your Secret Uber Tipping Behavior, Exposed

The company declined to say whether there have been shifts in tipping since mid-September 2017.The paper relies on detailed data about drivers, riders, and the rides themselves, including length, pickup time, and how many quick accelerations, hard brakes, and speeding stretches occurred during the trip.

Maybe It’s Not YouTube’s Algorithm That Radicalizes People

Maybe It’s Not YouTube’s Algorithm That Radicalizes People

The authors say the quantity and popularity of alternative (mostly right-wing) political media on YouTube is driven by both supply and demand.“We believe that the novel and disturbing fact of people consuming white nationalist video media was not caused by the supply of this media ‘radicalizing’ an otherwise moderate audience,” they write.

A New Gene Helps Explain Why Some People Need Less Sleep

A New Gene Helps Explain Why Some People Need Less Sleep

Fu and her colleague and spouse Louis Ptáček, both at the University of California, San Francisco, had just identified a gene mutation that significantly decreased how many hours someone needs to sleep .

‘Forever Chemicals’ Are in Your Popcorn—and Your Blood

‘Forever Chemicals’ Are in Your Popcorn—and Your Blood

From that federal data set, known as NHANES, they discovered that people who reported eating microwave popcorn had significantly higher levels of four types of PFAS chemicals, according to a study published in Environmental Health Perspectives.