The Consumer Electronics Show (CES) 2025 took place in Las Vegas, Nevada, this week.

The Eight Coolest Inventions From the 2025 Consumer Electronics Show

A needle-free injection system, a bug-watching garden camera, a wearable that helps with memory lapses and more were unveiled at the annual Las Vegas trade show

The world’s first Covid-19 human challenge study was born in early 2021.

What Have We Learned From Intentionally Infecting People With Covid-19?

Challenge trials help researchers study immune responses. Skeptics still doubt the approach is worth the risks

Jimmy Carter tries to comfort 6-year-old Ruhama Issah at Savelugu Hospital in Ghana as a Carter Center technical assistant dresses Issah's Guinea worm wound. In May 2010, Ghana reported its last case of Guinea worm disease and announced it had stopped transmission a year later.

Jimmy Carter Worked to Eradicate the Vicious Guinea Worm Parasite, Slashing Cases by the Millions

The 39th U.S. president aimed to quash the debilitating water-based infection before he died. Through the Carter Center’s work, he came tantalizingly close, lowering the number of yearly cases from 3.5 million to just 14

The U.S. has reported 66 human cases of H5N1 bird flu since March 2024, but a recent death of a Louisiana resident marks the country’s first fatality from the virus.

Officials Report the First Human Death From Bird Flu in the U.S. Here’s What to Know About the Virus

The death of a Louisiana resident who was over the age of 65 signals that future H5N1 infections are not guaranteed to be mild, health experts say

At the same time as the Romans were building the Colosseum, they were also breathing in high amounts of toxic lead from silver mining and smelting operations.

Ancient Romans Breathed in Enough Lead to Lower Their IQs, Study Finds. Did That Toxin Contribute to the Empire’s Fall?

Using Arctic ice core samples, researchers estimate silver mining and smelting released enough lead during the Pax Romana to cause a 2.5- to 3-point drop in IQ

The U.S. surgeon general wants updated warning labels on alcoholic beverages that highlight the increased risk of cancer tied to drinking alcohol.

Alcohol Consumption Raises the Risk of Seven Cancers, Says U.S. Surgeon General in a New Health Advisory

The “Nation’s Doctor” has called for a cancer warning label on alcoholic beverages and suggests the recommended limits for alcohol consumption should be reassessed

From these upper hip bones, researchers extracted an ancient genome of the bacteria that causes syphilis.

Ancient DNA Offers Crucial Hints to the Origin of Syphilis, a Decades-Long Mystery That Has Divided Scientists

Researchers found evidence that early versions of syphilis-causing bacteria existed in the Americas long before the arrival of Columbus

Some people are genetically built to require less sleep than the rest of us.

Why Do Some People Thrive on So Little Sleep?

Short sleepers cruise by on four to six hours a night and don’t seem to suffer ill effects

Charlotte, an injured turtle, wears his custom-made, 3D-printed harness that helps him swim straight.

Sea Turtle With ‘Bubble Butt Syndrome’ Gets Another Chance at Floating Straight, Thanks to a 3D-Printed Harness

Named Charlotte, the animal was hit by a boat years ago, causing him to develop an affliction that traps air bubbles at the back of his shell

One in ten southern right whales lives past the age of 131, new research suggests.

Some Whales Live Much Longer Than Previously Thought, a Discovery That Could Change How We Protect Them

In a new study, researchers use novel techniques to uncover more accurate life expectancy estimates of southern and North Atlantic right whales

Researchers looked at brain scan data and results from blood tests to search for correlation between certain proteins and brain aging.

Researchers Find 13 Proteins in the Blood That Are Seemingly Linked to Brain Aging

Though experts say more work is needed to understand the findings, this line of study might offer a way to monitor age-related cognitive disorders and target treatment

Towana Looney's surgery at NYU Langone Health lasted seven hours and involved dozens of medical professionals.

An Alabama Woman Got a Gene-Edited Pig Kidney Transplant. Three Weeks Later, She Has ‘Never Felt Better’

On November 25, 53-year-old Towana Looney became just the third living person to receive a pig kidney in an experimental procedure

Air Ring 48 attaches to the base of a construction helmet, providing crucial airflow to the sweatiest areas of the head and neck.

Could This New Wearable Device Reduce Heat Stress in Construction Workers?

Architecture students at the University of Hong Kong invented a cooling apparatus that attaches to a construction helmet

DNA on Earth is built from sugars with a property known as right-handedness. Though left-handed sugars aren't used by any known life, scientists can create them—but now, researchers say they shouldn't.

Scientists Warn of an ‘Unprecedented Risk’ From Synthetic ‘Mirror Life,’ Built With a Reverse Version of Natural Proteins and Sugars

So-called mirror cells could rampage through our ecosystems, food supply and immune systems, experts say, potentially without existing barriers to protect against them

The Union Carbide India Limited pesticide plant in Bhopal, India

On This Day in History

The World’s Deadliest Industrial Disaster Exposed 500,000 People to Toxic Gas and Claimed Thousands of Lives

A web of technical failures, human errors and corporate malpractice in Bhopal, India, culminated in an unthinkable tragedy on this day in 1984

Lake Tahoe's Emerald Bay is one of the sites where telephone cables were recently removed from.

Crews Remove Miles of Abandoned, Lead-Coated Telephone Cables From the Bottom of Lake Tahoe

The cables have been resting on the lakebed for decades, raising fears from environmentalists and residents about possible lead contamination

Fat tissue, as seen here under a scanning electron micrograph, maintains a "memory" of obesity, new research suggests.

Fat Cells Retain a ‘Memory’ of Obesity, Making It Hard to Lose Weight and Keep It Off, Study Suggests

Obesity leads to DNA alterations that affect gene activity and linger after weight loss, a finding that researchers say could help reduce stigma around the disease

An example of the American Pedometer with the decimal face and original packaging

From Jealous Spouses to Paranoid Bosses, Pedometers Quantified Suspicion in the 19th Century

The devices were used to track movement and measure productivity—an insightful foreshadowing of our current preoccupation with personal data

The 3D bioprinter at the Collins BioMicrosystems Laboratory at the University of Melbourne.

New 3D Bioprinter Could Build Replicas of Human Organs, Offering a Boost for Drug Discovery

The invention uses light, sound and bubbles to quickly create copies of soft tissue that might one day support testing individualized therapies for cancer and other diseases

Australian Reptile Park spider expert Rob Porter milks a male Sydney funnel-web spider to create antivenom in 2001.

Australian Zoo Asks Residents to Capture the World’s Most Venomous Spider: the Deadly Sydney Funnel-Web

The Australian Reptile Park’s annual callout is crucial to creating life-saving antivenom

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