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A DAY AGO
At Least 1 in 4 NFL Players Gets CTE, Major New Study Finds
The actual prevalence, researchers said, may be much higher.
A DAY AGO
3 Charts That Explain El Niño
With air and sea surface temperatures already breaking records, this year’s episode is on track to be the strongest in living memory.
A DAY AGO
E.P.A. Moves to Curb Public Input on Air Pollution Permits for Data Centers
Under the proposal, states would no longer need to provide public notice or solicit comments on air pollution permits for data centers and other projects.
A DAY AGO
Silence, Wolves and the Wild East: Hiking in Portugal’s Côa Valley
A trek in a remote corner of the Iberian Peninsula brought a writer face-to-face with ancient oaks, rewilding efforts and prehistoric cave art.
A DAY AGO
Wildfires Are Turning Forests in the American West Into Shrubland
Towering woodlands in the West are being permanently replaced by tracts of spiky shrubs. Conditions “just aren’t normal anymore,” one researcher said.
- SCIENTIFIC AMERICANA DAY AGO

Elon Musk's SpaceX to expand beyond Texas Starbase with new Louisiana spaceport dedicated to Starship
The new spaceport is aimed to support thousands of launches each year, according to SpaceX.
- SCIENTIFIC AMERICANA DAY AGO

The U.S. just recorded its first two deaths from measles for 2026
Both of the deceased were unvaccinated against measles. The deaths are the first fatalities caused by the preventable disease in the state of Pennsylvania in 35 years
A DAY AGO
MAHA Moms Take On Coal
Some leaders of the health movement are challenging a pillar of the president’s energy agenda.
A DAY AGO
A Chinese A.I. Lab May Test the World’s Cybersecurity With a Model
In July, an unreleased OpenAI model went rogue and demonstrated remarkable hacking abilities. This week, a lab called Z.ai will release a similarly powerful system to everyone.
20 HOURS AGO
SpaceX to Spend $100 Billion on Spaceport in Louisiana
It would be the rocket company’s second private launch site after Starbase, its headquarters in South Texas.
- SCIENTIFIC AMERICAN8 HOURS AGO

The overlooked role of sperm DNA damage in recurrent miscarriage
New recommendations spotlight sperm's role in recurrent miscarriage
- SCIENTIFIC AMERICAN4 HOURS AGO

NASA’s Roman Space Telescope could reveal dark energy’s deepest secrets
The more scientists try to understand dark energy, the more its mysteries seem to grow. NASA's newest space telescope is custom-built to crack the case
- SCIENTIFIC AMERICAN3 HOURS AGO

Meta to pay $18 billion and make sweeping app changes to settle social media harms lawsuit
Meta agreed to implement new safety measures, including a default two-hour daily limit for using Facebook and Instagram, for users under the age of 18
- SCIENTIFIC AMERICAN5 HOURS AGO

Controversial Alzheimer’s surgery is said to reverse symptoms. Here’s what scientists say
Jaw-dropping patient videos and miraculous testimonials ignited a frenzy in China over a technique that aims to improve drainage from the brain in dementia patients. Now it is entering trials worldwide
7 HOURS AGO
Americans Encounter Risks at Psychedelic Clinics Abroad
Participants, often in vulnerable states, have little recourse if mistreated or injured.