Science
Highlights
Lemurs in Madagascar Face an Unexpected Killer
Thousands of the endangered primates end up on the dinner plates of people in the upper rung of the country’s society who have money to spare.
ByDina Fine Maron

CreditCortni Borgerson Why the Rings of Saturn Seem as if They’re About to Disappear
During the weekend, the orbits of Earth and Saturn will combine to create an interplanetary optical illusion for anyone with a good telescope and clear skies.
ByTom Metcalfe

CreditNASA/JPL-Caltech/Space Science Institute Anonymous Bidder Pays Nearly $1 Million for Secret to Decode C.I.A. Sculpture
The creator of the Kryptos panels, Jim Sanborn, sought to unburden himself of the puzzle, and then discovered before an auction he had archived its solution in the Smithsonian.
ByJohn Schwartz

CreditKevin Wolf/Associated Press The Moon Was an Inside Job
New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon, came from closer to the sun.
ByRobin George Andrews

CreditMark A. Garlick/MPS
NASA Releases Images of Comet 3I/ATLAS: It ‘Doesn’t Look Like a Spacecraft’
With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an object that came from beyond our solar system.
ByKenneth Chang

CreditNASA/Lowell Observatory/Qicheng Zhang Video Reveals How Far Wolves Will Go to Steal a Meal
After a wolf dragged a crab trap out of water to get a snack, some scientists said the behavior revealed their ability to use tools.
ByLesley Evans Ogden

CreditKyle Artelle TrilobitesA Voyage Into the Art of Finding One’s Way at Sea
Scientists and Indigenous sailors in the Marshall Islands are studying seafaring and the human brain.
ByAlexa Robles-Gil

CreditChewy C. Lin We Can Now Track Individual Monarch Butterflies. It’s a Revelation.
Scientists used tiny new sensors to follow the insects on journeys that take thousands of miles to their winter colonies in Mexico.
ByDan Fagin andJonathan Corum

CreditHannah Beier for The New York Times Parasitic Queen: Now She’s Stealing an Ant Fief
Experts discovered an unusual form of regicide in which a parasitic ant queen tricks workers in a colony into turning on their own mother.
ByRebecca Dzombak

CreditT. Shimada Trilobites
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Lost Science
More in Lost Science ›Has Your Scientific Work Been Cut? We Want to Hear.
For a new series, Times journalists are speaking with scientists whose research has ended as a result of policy changes by the Trump administration.
ByAlan Burdick

CreditWill Warasila for The New York Times She Studied How to Protect Children From Pollution and Heat
“There was no warning, no conversation,” said Jane Clougherty, an environmental health scientist, who had a federal grant canceled earlier this year.
BySachi Kitajima Mulkey

CreditHannah Yoon for The New York Times He Helped Cities Anticipate Damage From Storms
Austin Becker developed an early warning system to protect critical infrastructure from storms. His project’s funding was eliminated in April.
BySachi Kitajima Mulkey

CreditKannetha Brown for The New York Times Her Research Could Improve Training for Service Dogs
“This is a type of science that has an impact that most people could see in their homes,” said Erin Hecht, a canine researcher at Harvard. “Now there’s just no money.”
ByEmily Anthes

CreditLucy Lu for The New York Times She Made Sure That Tsunami Warnings Reached the Public
“I always wanted to be a public servant and do science for the good of the people,” said Corina Allen, who lost her job at NOAA.
ByRebecca Dzombak

CreditRuth Fremson/The New York Times
Math, Revealed
More in Math, Revealed ›What the Golden Ratio Says About Your Belly Button
The secret beauty in apples, stars and the center of you.
BySteven Strogatz andJens Mortensen

CreditJens Mortensen for The New York Times How a Puzzle About Fractions Got Brain Scans Rolling
A story of bowling pins, patterns and medical miracles.
BySteven Strogatz andJens Mortensen

CreditJens Mortensen for The New York Times Where Pi Equals 4 and Circles Aren’t Round
In the world of taxicab geometry, even the Pythagorean theorem takes a back seat.
BySteven Strogatz andJens Mortensen

CreditJens Mortensen for The New York Times How Bees, Beer Cans and Data Solve the Same Packing Problem
Trying to fit it all in? There’s a trick to it, even in 24 dimensions.
BySteven Strogatz andJens Mortensen

Credit Teach Triangular Numbers With Steven Strogatz and The New York Times
Invite students to uncover how a centuries-old math puzzle helped us see inside the human brain.
ByPatrick Honner

CreditJens Mortensen for The New York Times
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Origins
More in Origins ›Life Lessons From (Very Old) Bowhead Whales
A gene that helped bowheads adapt to frigid Arctic waters also granted them extraordinary longevity. Could it help aging humans become more resilient?
ByCarl Zimmer

CreditKelvin Aitken/VWPics, via Alamy Save the Whales. But Save the Microbes, Too.
Conservation biologists propose a daunting task: protecting Earth’s diversity of bacteria and other microbes.
ByCarl Zimmer

CreditJon G. Fuller/VWPics, via Associated Press How Did Hands Evolve? The Answer Is Behind You.
The evolutionary blueprint for hands was borrowed in part from a much older genetic plan for our nether regions, a new study suggests.
ByCarl Zimmer

CreditPablo Bou Mira/Alamy Uncovering the Genes That Let Our Ancestors Walk Upright
A new study reveals some of the crucial molecular steps on the path to bipedalism.
ByCarl Zimmer

CreditAlamy How the Pygmy Sea Horse Lost Its Snout
The genome of a small, remarkable sea horse offers a surprising lesson in nature’s creativity.
ByCarl Zimmer

CreditRichard Smith
Trilobites
More in Trilobites ›Where You See a Fancy Fish, Engineers See Alan Turing’s Math
Using a new computer model, scientists simulated the stripes, spots and hexagons on a species of boxfish, imperfections and all.
ByKatrina Miller

CreditWirestock, via Alamy This Is What a Vindicated Iguana Looks Like
Reptiles on a Mexican island were considered an invasive species, but DNA evidence proves they beat humans to the island by hundreds of thousands of years.
ByJude Coleman

CreditDaniel Mulcahy This Genetically Engineered Fungus Could Help Fix Your Mosquito Problem
In experiments, researchers showed that the disease-spreading insects couldn’t resist the sweet smell of a fungus that infected and killed them.
ByJason P. Dinh

CreditHuiyu Sheng The Case of the Tiny Tyrannosaurus Might Have Been Cracked
Did certain small tyrannosaur fossils belong to “teen rex” or another species? New analysis of a recent fossil appears to have settled the debate.
ByAsher Elbein

CreditAnthony Hutchings Riddle Me This, Riddle Me That: Who Can Explain the Glowing Green Bats?
Six species of North American bats emit a glow at almost identical wavelengths, according to a recent study.
BySara Novak

CreditBriana Roberson
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Climate and Environment
More in Climate and Environment ›Oil Producers, but Maybe Not the Planet, Get a Win as Climate Talks End
The final agreement, with no direct mention of the fossil fuels dangerously heating Earth, was a victory for countries like Saudi Arabia and Russia, diplomats said.
ByMax Bearak andLisa Friedman

CreditPablo Porciuncula/Agence France-Presse — Getty Images Stopping the Greatest Threat to the Amazon, One Fire at a Time
After four decades of research, a scientist returns to the Amazon in an effort to change the behavior that has led to years of environmental crisis.
ByDavid Gelles andDado Galdieri

CreditDado Galdieri for The New York Times In One Week, Trump Moves to Reshape U.S. Environmental Policy
The Trump administration this week moved to weaken the Clean Water Act and the Endangered Species Act, two bedrock laws, among other deregulatory moves.
ByMaxine Joselow

CreditAllison Robbert for The New York Times China Offers Panda Totes, but No New Commitments, at Climate Talks
The United States has retreated on climate. China, the only superpower at COP30 and the world leader in clean energy, is not filling the void.
ByLisa Friedman andSomini Sengupta

CreditAdriano Machado/Reuters A Climate ‘Shock’ Is Eroding Some Home Values. New Data Shows How Much.
Changes in the insurance market have started to affect home prices in the most disaster-prone areas, new research finds, pushing some homeowners’ finances to the breaking point.
ByClaire Brown andMira Rojanasakul

CreditThe New York Times

Eli Lilly Reaches $1 Trillion in Value, Buoyed by Demand for Its Weight Loss Drugs
The 150-year-old drugmaker is the first company in health care to hit the milestone.
ByRebecca Robbins

Cassidy Got Pledges From Kennedy on Vaccines. They Haven’t Stuck.
Before casting a crucial vote for the health secretary, the top Senate Republican laid out several specific commitments he had secured, some of which appear to have been breached.
ByAnnie Karni

Kennedy Says He Told C.D.C. to Change Website’s Language on Autism and Vaccines
In an interview, Health Secretary Robert F. Kennedy Jr. cited gaps in vaccine safety research. His critics say he is ignoring a larger point: Vaccines save lives.
BySheryl Gay Stolberg

These Chocolatiers Found a Delicious Way to Help the Amazon
A new generation of craft chocolate makers in Brazil is creating bars with “identity.” And they’re helping to sustain the forest, too.
BySomini Senguptaand Alessandro Falco

Researcher’s Smuggling Arrest Casts Light on Dispute Over Chinese Students
As some lawmakers press U.S. universities to curtail ties with China, a postdoctoral student’s prosecution raises questions about how big the danger actually is.
ByEphrat Livni

A Trump Overhaul of the Energy Dept. Breaks Up Clean Energy Offices
The reorganization reflects the ongoing shift in the federal government’s energy priorities: less renewable energy, more fossil fuels.
ByBrad Plumer

Stephen Anderson, Linguist Who Refuted Doctor Dolittle, Dies at 82
In “Doctor Dolittle’s Delusion,” he argued that language is a biological system unique to humans, despite the widespread belief that it extended to other animals.
ByMichael S. Rosenwald

Botulism Bacteria Found in Infant Formula, Company Confirms
ByHeart, the maker of the product, has been linked to an outbreak of illnesses among infants that led to their hospitalizations.
ByChristina Jewett

Fire Breaks Out at COP30 Climate Talks in Brazil
Delegates were evacuated from the conference venue, where thousands from nearly 200 countries had gathered.
ByLisa Friedman

As the World Pursues Clean Power, Millions Still Have No Power at All
Just outside Belém, the Amazonian city where the world is meeting to discuss climate change, electricity is a very recent arrival.
ByMax Bearakand Alessandro Falco