NYT > Science

    Hans Asperger Aided Nazi Child Euthanasia, Study Says

    Hans Asperger Aided Nazi Child Euthanasia, Study Says


    Hans Asperger in Vienna in 1971. According to a new report, Dr. Asperger participated in the Third Reich’s child-euthanasia...

    The autism researcher collaborated with the Third Reich and actively assisted in the killing of disabled children, a new report says.
    Matter: Bodies Remodeled for a Life at Sea

    Matter: Bodies Remodeled for a Life at Sea


    A Bajau diver spearfishes in Sulawesi. A study suggests these sea-dwelling people have evolved adaptations to deep...

    The Bajau, who spend most of their time on the ocean, are among the best divers in the world. Evolution is remaking them, a new study finds.
    E. Coli Outbreak Tied to Romaine Lettuce Expands to 16 States

    E. Coli Outbreak Tied to Romaine Lettuce Expands to 16 States


    A romaine lettuce field near Somerton, Ariz., in 2016. To pinpoint the exact source of the E. coli, investigators would need samples of the tainted lettuce...

    At least 53 people have been infected so far, and more than half have been hospitalized.
    As Opioid Prescriptions Fall, Prescriptions for Drugs to Treat Addiction Rise

    As Opioid Prescriptions Fall, Prescriptions for Drugs to Treat Addiction Rise


    Prescriptions for opioid painkillers have been falling in recent years. At the same time, prescriptions for medications to treat opioid addiction are rising...

    New data suggests progress in efforts to curb the epidemic but raises questions about whether tightened prescribing may be leading some people to heroin and fentanyl.
    Frenchman Is First in World to Get 2 Full Face Transplants

    Frenchman Is First in World to Get 2 Full Face Transplants


    Jérôme Hamon, left, the first man in the world to receive two full-face transplants, with Dr. Laurent Lantieri at the Georges-Pompidou European Hospital in...

    Jérôme Hamon, a bookseller who has a genetic disease, underwent a second transplant after his body rejected the first because he had taken an antibiotic for a cold.
    San Francisco Earthquake Risks: Questions and Answers

    San Francisco Earthquake Risks: Questions and Answers


    The proliferation of high-rises in San Francisco add to the complexity of the city’s earthquake...

    Our correspondent in San Francisco answers readers’ questions about the risks facing the Bay Area when the Big One hits.

    Watch as NASA and SpaceX Launch TESS, a Planet-Hunting Satellite


    The spacecraft will scan the sky for planets orbiting nearby star systems, another step in the long search for signs of life in the Milky Way. The launch on Wednesday was postponed from...

    The spacecraft will scan the sky for planets orbiting nearby star systems, another step in the long search for signs of life in the Milky Way. The launch on Wednesday was postponed from Monday.
    Trilobites: Diamonds in a Meteorite May Be a Lost Planet’s Fragments

    Trilobites: Diamonds in a Meteorite May Be a Lost Planet’s Fragments


    Fragments of the 2008 TC3, or Almahata Sitta, meteorite that fell to Earth in 2008. The diamonds discovered inside one of the fragment may have come from a protoplanet that orbited the sun billions of years...

    The space rock crashed in a desert in Sudan in 2008, and the flaws in its embedded minerals are like nothing seen in today’s solar system.
    Climate Lawsuits, Once Limited to the Coasts, Jump Inland

    Climate Lawsuits, Once Limited to the Coasts, Jump Inland


    A rally in Boulder, Colo., where a lawsuit against oil and gas companies was announced...

    Local governments in California and New York City have sued oil and gas giants. Now Boulder and two Colorado counties have joined the fight.
    Pursuits: A Birder’s Paradise in Zimbabwe

    Pursuits: A Birder’s Paradise in Zimbabwe


    Granite outcroppings at Matobo National Park, a 163-square-mile...

    One of the greatest concentrations of birds of prey in the world can be found among the towering rock formations and thick forests of Matobo National Park.
    Feature: Can Dirt Save the Earth?

    Feature: Can Dirt Save the Earth?


    A steaming pile of manure mixed with straw bedding at West Marin Compost in Marin County,...

    Agriculture could pull carbon out of the air and into the soil — but it would mean a whole new way of thinking about how to tend the land.
    Australia Diary: Weathering the Weather

    Australia Diary: Weathering the Weather


    Satellite imagery of one of the many cyclones to hit Queensland,...

    Growing up in Queensland means understanding the difference between hot, stinking hot and unbearably hot.

    How This Beetle Evolved to Mimic Ants


    At least 12 types of rove beetle have evolved to convince ants and termites that it is one of them, all the while stealing their food and eating their...

    At least 12 types of rove beetle have evolved to convince ants and termites that it is one of them, all the while stealing their food and eating their young.
    Lung Cancer Patients Live Longer With Immune Therapy

    Lung Cancer Patients Live Longer With Immune Therapy


    A colored magnetic resonance imaging scan of a cancerous tumor in the lung, in orange, upper right. A study suggests “that chemotherapy alone is no longer a standard of care,” its lead author...

    Adding immunotherapy to standard chemo treatments can halve the risk of death for people with the most common type of lung cancer, a new study shows.
    Basics: You Share Everything With Your Bestie. Even Brain Waves.

    Basics: You Share Everything With Your Bestie. Even Brain Waves.


    Scientists have made astonishing discoveries about the nature and evolution of friendship. Without it, humans suffer significant physical and emotional...

    Scientists have made astonishing discoveries about the nature and evolution of friendship. Without it, humans suffer significant physical and emotional damage.
    Trillions Upon Trillions of Viruses Fall From the Sky Each Day

    Trillions Upon Trillions of Viruses Fall From the Sky Each Day


    Viruses attached to a fragment of a bacterial cell wall. “Viruses modulate the function and evolution of all living things,” scientists wrote last year. “But to what extent remains a...

    Viruses shape the ecology of the planet, but scientists still have only a rudimentary understanding of the microbial impacts on animals, plants and ecosystems.

    Freight Train Kills 4 Elephants in India, Including a Calf


    As mining and development projects shrink the country’s forests, animals in search of food have been forced to wander farther from their natural...

    As mining and development projects shrink the country’s forests, animals in search of food have been forced to wander farther from their natural habitats.
    Friendship’s Dark Side: ‘We Need a Common Enemy’

    Friendship’s Dark Side: ‘We Need a Common Enemy’


    Friendship generally is regarded as an unalloyed good. But scientists have found it also can be a conspiracy, a way to separate “us” from...

    Friendship generally is regarded as an unalloyed good. But scientists have found it also can be a conspiracy, a way to separate “us” from “them.”
    206 Million Eggs Recalled Over Salmonella Fears

    206 Million Eggs Recalled Over Salmonella Fears


    Eggs that may have been contaminated with salmonella were distributed to nine states, the federal Food and Drug Administration said on...

    An egg farm in Hyde County, N.C., is the likely source of a salmonella outbreak that has sickened 22 people. Eggs from the farm may have reached nine states, officials said.

    Retro Report: A Drug to End Addiction? Scientists Are Working on It.


    Researchers are studying a promising drug that could block the delivery of opioids from blood to brain, giving addicts a path to...

    Researchers are studying a promising drug that could block the delivery of opioids from blood to brain, giving addicts a path to recovery.
    Trilobites: The Evolution of the Eyebrow

    Trilobites: The Evolution of the Eyebrow


    A new study suggests humans evolved more mobile, expressive eyebrows to accommodate our increasingly complex...

    A new study suggests that brow ridges probably didn’t evolve for practical reasons, but for sometimes subtle communications.
    Trilobites: Sea Turtles Use Magnetic Fields to Find Their Birthplace Beach

    Trilobites: Sea Turtles Use Magnetic Fields to Find Their Birthplace Beach


    Loggerhead turtles are known to use the earth’s magnetic fields to nest on Florida’s Gulf beaches within about 40 to 50 miles of where they were born decades...

    Using loggerhead genetics, researchers traced the routes of turtles that return decades after birth to nest near their original homes.
    Peter Grünberg, 78, Winner of an ‘iPod Nobel,’ Is Dead

    Peter Grünberg, 78, Winner of an ‘iPod Nobel,’ Is Dead


    Peter Grünberg in his laboratory at a research institute in Jüelich, Germany, in 2007. His prize-winning discovery enabled the era of big data to...

    Discovering how to store vast amounts of data by manipulating magnetic and electrical fields paved the way for devices like the smartphone.