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    Profiles in Science: The Yoda of Silicon Valley

    Profiles in Science: The Yoda of Silicon Valley


    Donald Knuth at his home in Stanford, Calif. He is a notorious perfectionist and has offered to pay a reward to anyone who finds a mistake in any of his...

    Donald Knuth, master of algorithms, reflects on 50 years of his opus-in-progress, “The Art of Computer Programming.”
    Congo Says Baby Girl Is Youngest Survivor of Ebola Outbreak

    Congo Says Baby Girl Is Youngest Survivor of Ebola Outbreak


    A caregiver with Benedicte in Beni, Democratic Republic of Congo, this month. Congolese are calling the infant the “young...

    Congolese are calling the infant named Benedicte, who was admitted to an Ebola treatment center six days after birth, the “young miracle.”
    Mapping the Brain’s Genetic Landscape

    Mapping the Brain’s Genetic Landscape


    Magnetic resonance imaging scans of a healthy brain. A $50 million project by more than a dozen research centers aims to create a sort of Google Earth of the...

    Scientists have taken a step toward building a computer model of the brain’s genome, one that may help clarify the genetic roots of schizophrenia, autism and other disorders.
    Vows: Arts Meets Science and Chemistry Wins the Day

    Vows: Arts Meets Science and Chemistry Wins the Day


    Later on his wedding day, Mr. Romer received the Nobel from King Carl Gustaf of Sweden during the award ceremony, at the Stockholm Concert...

    Paul Romer had a doubly big day: first he was married to Caroline Weber and then accepted a Nobel later in the evening.

    Trilobites: Watch This Wolf Go Fishing


    Yes, researchers in Minnesota have recorded wolves diving into a stream to grab a...

    Yes, researchers in Minnesota have recorded wolves diving into a stream to grab a meal.
    Matter: Narrower Skulls, Oblong Brains: How Neanderthal DNA Still Shapes Us

    Matter: Narrower Skulls, Oblong Brains: How Neanderthal DNA Still Shapes Us


    A rendering of a Neanderthal skull, left, compared to that of a modern human. By measuring Neanderthal skull volume, scientists have found that their brains were as big as ours on average, perhaps...

    Two genes inherited from our evolutionary cousins may affect skull shape and brain size even today. What that means for human behavior is a mystery.
    Montreal Turns to Coyote Hazing After 19 People Are Bitten

    Montreal Turns to Coyote Hazing After 19 People Are Bitten


    A coyote in Sainte-Anne-de-Bellevue, Quebec, about 40 minutes outside Montreal. Coyote populations have expanded across much of North America over the past...

    As coyotes have flourished in urban environments, cities are faced with the task of learning how to coexist peacefully.
    Breast Cancer Risk May Rise After Childbirth, but Is Still Low

    Breast Cancer Risk May Rise After Childbirth, but Is Still Low


    The report, based on pooled data from 15 studies involving 890,000 women, stated that women who had children had a slight increase in breast cancer risk for about 20...

    Women who recently gave birth may have an increased risk of breast cancer that lasts about 20 years. But for most, the overall risk is still small.
    N.I.H. to Scrutinize Private Donations to Scientific Research Projects

    N.I.H. to Scrutinize Private Donations to Scientific Research Projects


    After halting a discredited alcohol study, officials will enforce new policies to ensure that private support does not compromise scientific...

    After halting a discredited alcohol study, officials will enforce new policies to ensure that private support does not compromise scientific integrity.
    Virgin Galactic Rocket Ship Reaches Space, a Milestone in Space Tourism

    Virgin Galactic Rocket Ship Reaches Space, a Milestone in Space Tourism


    A Virgin Galactic spacecraft flew into space, a first for the space tourism company, during a flight on Thursday high above the Mojave Desert in...

    Richard Branson’s company, which sent the crewed craft, SpaceShipTwo, more than 50 miles above Earth, is one of several racing to make space tourism a reality.
    Trump’s NOAA Nominee Won’t Get Senate Vote This Year

    Trump’s NOAA Nominee Won’t Get Senate Vote This Year


    Democrats have said that Barry Lee Myers, left, the chief executive of AccuWeather, has conflicts of...

    The White House will have to decide whether to renominate Barry Lee Myers, the chief executive of AccuWeather, next year.

    Opening in Venice: New Space Highlighting Ocean Preservation


    The center, funded by the Thyssen-Bornemisza Art Contemporary foundation, uses a variety of disciplines to focus on environmental...

    The center, funded by the Thyssen-Bornemisza Art Contemporary foundation, uses a variety of disciplines to focus on environmental issues.
    Two Workers Die at American Research Base in Antarctica

    Two Workers Die at American Research Base in Antarctica


    McMurdo Station on Ross Island in Antarctica houses about 1,000 researchers and support personnel this time of...

    Officials said two fire technicians died in an accident at a generator building near McMurdo Station, the main United States base on the continent.
    Fetal Tissue Research Is Curtailed by Trump Administration

    Fetal Tissue Research Is Curtailed by Trump Administration


    The Department of Health and Human Services has ordered the National Institutes of Health to stop purchasing fetal tissue, hobbling some research on...

    Studies that rely on tissue from aborted fetuses have pitted abortion critics against scientists who say the research helps millions of people.
    Women in Rare Company Accept Nobel Prizes in Physics and Chemistry

    Women in Rare Company Accept Nobel Prizes in Physics and Chemistry


    Donna Strickland accepting the Nobel Prize in Physics at the award ceremony on Monday in...

    “It is truly an amazing feeling when you know that you have built something that no one else ever has and it actually works,” said Donna Strickland, only the third woman to win the physics prize.
    It Could Be the Age of the Chicken, Geologically

    It Could Be the Age of the Chicken, Geologically


    A poultry farm in South Africa. There are at least 10 times more chickens on Earth than any other...

    With 65 billion chickens consumed each year, the signature fossil of the modern epoch may be the leftovers.

    Russian Astronauts Inspect Mysterious Hole in Spacecraft


    The astronauts Oleg Kononenko and Sergey Prokopyev examined a small hole on the Soyuz Capsule during a spacewalk. That hole has lead to some speculation in the Russian news media about an act of sabotage by the United...

    The astronauts Oleg Kononenko and Sergey Prokopyev examined a small hole on the Soyuz Capsule during a spacewalk. That hole has lead to some speculation in the Russian news media about an act of sabotage by the United States.

    ScienceTake: Geckos Can Run on Water


    A small lizard is among the elite group of animals that race across the surface of...

    A small lizard is among the elite group of animals that race across the surface of water.
    It’s a Briefcase! It’s a Pizza Box! No, It’s a Mini Satellite

    It’s a Briefcase! It’s a Pizza Box! No, It’s a Mini Satellite


    High school students and faculty from Irvine, Calif., conduct tests that simulate the harsh conditions of space. Their latest tiny satellite, IRVINE02, went into orbit on Dec....

    Orbiting instruments are now so small they can be launched by the dozens, and even high school students can build them.

    How Geckos Move Across Water


    The Asian house gecko can move across water at great speed by using a half-running, half-swimming...

    The Asian house gecko can move across water at great speed by using a half-running, half-swimming motion.
    Voyager 2 Has Entered the Space Between Solar Systems

    Voyager 2 Has Entered the Space Between Solar Systems


    NASA engineers working on the Voyager 2 spacecraft in...

    It is the second spacecraft to make the crossing into interstellar space, providing a new look at what lies beyond our local galactic neighborhood.