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- SCIENTIFIC AMERICAN7 HOURS AGO

Can math predict the end of humanity? Inside the ‘doomsday argument’
This eerily simple math says our days are numbered—and nobody can agree why it's wrong
A DAY AGO
A U.S. Reckoning Over Chemical Pollution From Military Bases
New Mexico is suing the federal government over PFAS contamination from Cannon Air Force Base. The outcome will affect how courts treat more than 15,000 similar claims nationwide.
- SCIENTIFIC AMERICAN7 HOURS AGO

Watch SpaceX launch Starship V3—the tallest and most powerful rocket yet
Thursday's flight could be the most pivotal test of the Starship megarocket
- SCIENTIFIC AMERICAN6 HOURS AGO

Trial of next-gen weight-loss drug retatrutide brings it one step closer to FDA approval
While drugs such as Wegovy target a single gut hormone, retatrutide is among a new class of GLP-1 drugs that aims at three hormone receptors
- SCIENTIFIC AMERICAN6 HOURS AGO

AI just solved an 80-year-old ‘Erdős problem,’ and mathematicians are amazed
A chatbot's result for the 80-year-old "unit distance" conjecture is the first AI proof that would likely be published in math's top journal if humans had done it alone
9 HOURS AGO
SpaceX to Attempt Its 12th Test Flight of Starship
The giant rocket is scheduled to lift off on Thursday after a seven-month pause and a month before SpaceX’s planned public offering.
- SCIENTIFIC AMERICAN4 HOURS AGO

NOAA predicts quieter Atlantic hurricane season for 2026—but the Pacific is another story
This year's expected El Niño could hamper hurricanes in the Atlantic but boost them in the central and eastern Pacific
A DAY AGO
Fish and Wildlife Service Clears a Weedkiller, Saying It Won’t Cause Extinction
The finding effectively paves the way for continued use of atrazine, a widely used herbicide that has been linked to birth defects and cancer in humans.
3 HOURS AGO
When Humans Went Away, the Wildlife Strayed
When people disappeared from the landscape, as they did during the pandemic, wild animals changed how they used space and resources, scientists found.
3 HOURS AGO
A Very Lonely Caterpillar, Possibly the Last of Its Kind, Has Died
The Sacramento Mountains checkerspot butterfly hasn’t been seen in the wild since 2022. The caterpillar was the last individual in human care.
- SCIENTIFIC AMERICAN3 HOURS AGO

Scientists discover why gold doesn’t ‘rust’
Gold doesn't tarnish like similar metals do. A new paper says that the key is the intricate "herringbone" pattern of its atoms.
- SCIENTIFIC AMERICAN3 HOURS AGO

A new study says you need 10 hours of exercise a week. Can that really be possible?
Experts question this study's design and its recommendations—and point out that you probably get more exercise than you think
- SCIENTIFIC AMERICAN2 HOURS AGO

Hantavirus found in shocking number of Pacific Northwest rodents
The critters were carrying the Sin Nombre variant of hantavirus, which can be spread from rodents to humans, but not from one person to another
- SCIENTIFIC AMERICAN2 HOURS AGO

Hidden structural features inside Egypt’s Great Pyramid may have helped it withstand earthquakes, new study finds
Constructed by ancient Egyptians, the Great Pyramid has survived multiple earthquakes through the ages—now researchers think they know why
- SCIENTIFIC AMERICAN3 HOURS AGO

JWST sees partly cloudy skies on a distant, giant exoplanet
An out-of-this-world weather report from NASA's James Webb Space Telescope reveals how clouds move across a giant planet hundreds of light-years from Earth