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Heisuke Hironaka, Groundbreaking Mathematician, Is Dead at 94
A recipient of his profession’s prestigious Fields Medal, he devised an algorithm that helps solve mathematical “singularities.” It now permeates the field.
E.P.A. Waives Smog Rules on Summer Gasoline in Bid to Ease Prices
The moves will allow expanded sales of a higher-ethanol blend known as E15, which is often restricted in the summer.
Humans Had Dogs Before They Had Farming, Ancient DNA Confirms
New research pushes the first genetic evidence of dogs back by 5,000 years and suggests that hunter-gatherer groups may have acquired dogs from one another.
Maryland’s Supreme Court Strikes Down Baltimore’s Climate Lawsuit
The decision represents a setback to other local governments around the country that have sued oil companies to recoup the mounting costs of climate change.
Ancient Grapes Reveal Long History of Modern Wines
Genetic material preserved in ancient grape seeds reveals when, and how, humans meddled with wine grapes.
NASA Adds Moon Base and Nuclear-Powered Mars Spacecraft to Road Map
The agency announced the more specific plans and timelines after years of suggesting it may build a lunar outpost.
How Do You Measure Snow From Space? First, Climb a Mountain.
A new satellite could transform how water is studied worldwide. But to help unlock its capabilities, scientists first needed to take critical measurements on a mountaintop.
We’ve Been Underestimating Flying Foxes
Australia used to incinerate the large fruit bats, but research suggests they bring hundreds of millions of dollars in benefits to the country’s economy.
Tango Therapy: How the Dance of Passion Is Helping Parkinson’s Patients
Once a week, patients in an Argentine hospital with Parkinson’s disease use the movements of tango to help address issues of balance, stiffness and coordination.
Wicked Stepmother No Longer, a Female Pharoah Gets a Reputational Makeover
A reassessment of damaged 3,500-year-old statuary adds to evidence that Queen Hatshepsut wasn’t the villain that scholars long took her to be.
MDMA Therapy in Australia Shows Results for PTSD Patients, but the Cost Is Limiting Access
The country’s experiment with psychedelic medicine has led to positive outcomes, psychiatrists say, but also highlights the limitations of the nascent field.
Carbon Capture Technology Is Helping This Pub Make Beer
A pub in California is pulling carbon dioxide from the air to carbonate pints. If the business model works, it could give the broader carbon-capture industry a boost.
Takeaways From the Times’s Inside Look at the C.D.C.
Many current and former employees say the actions of Health Secretary Robert F. Kennedy Jr. are undermining the agency’s role in safeguarding public health.
Diabetes, Overlooked and Unchecked, Poses New Risks in Africa
As deaths from diabetes start to rival those from infectious threats like malaria, a new form of the condition linked to malnutrition is surfacing in patients who can afford neither screening nor care.
J. Michael Bishop, Nobel Prize Winner for Cancer Research, Dies at 90
He helped discover cancer-causing genes. Later, as chancellor of the University of California, San Francisco, he led a major expansion.
A Meteor Exploded Over Ohio. Then the Hunt for Meteorites Began.
After a seven-ton fireball exploded above the Cleveland area, a group of meteorite hunters descended too, in the name of science — and possibly cash.
David Botstein, Gene-Mapping Pioneer, Dies at 83
His method of locating genes in human DNA allowed researchers to find disease-causing genes, and later to map the entire, sprawling human genome.
Lee Zeldin, E.P.A. Chief, to Headline Heartland Institute Forum
Lee Zeldin, the agency administrator, will address a Heartland Institute forum in April. The organization says speakers will challenge the climate crisis “narrative.”
New Spider Mimics ‘The Last of Us’ Zombie Fungus Cordyceps
A newly discovered species of spider in the Ecuadorean Amazon mimics a pathogen, known as a zombie fungus, to protect itself.
How New Mexico Became an Obamacare Success Story
Affordable Care Act enrollment has dropped across the United States since the enhanced federal subsidies expired. But New Mexico has record numbers of people signing up.
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