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E.g., 01/18/2018
E.g., 01/18/2018
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Your search has returned 678 articles:
  • Letters to the Editor

    Readers wrangle with definition of ‘species’

    Species shmecies

    In “Defining ‘species’ is a fuzzy art” (SN: 11/11/17, p. 22), Susan Milius asked scientists to define “species.” Schoolbooks may define the concept as a group of organisms that create fertile offspring when mating with each other but not when mating with outsiders. But for researchers specializing in the topic, a single definition is hard to come by.

    “It seems to me...

    01/10/2018 - 12:37 Evolution, Technology, Astronomy
  • The List

    Ask AI: How not to kill online conversations

    A new artificial intelligence could tell whether your next post to an online forum will engage others or fall flat.

    Computer scientist Qiaozhu Mei of the University of Michigan in Ann Arbor and colleagues trained a machine-learning program on about 63,000 Reddit threads to learn what dialog-ending responses look like.

    This kind of chat-savvy computer code, described in a paper...

    01/03/2018 - 09:00 Artificial Intelligence, Networks, Computing
  • Letters to the Editor

    These are the most-read Science News stories of 2017

    The Science News website attracted millions of visitors in 2017. The lists below name the most-read online stories outside of our Top 10 stories of the year, plus the most popular stories for each of our blogs.

    Top stories

    1. The blue wings of this dragonfly may be surprisingly aliveTiny tubes between veins in the shimmery blue wings of morpho dragonflies (shown above) may be respiratory...

    12/13/2017 - 12:00 Science & Society, Astronomy, Animals
  • Letters to the Editor

    Readers debate ethics of resurrecting extinct species

    Culture club

    The book Rise of the Necrofauna tackles the challenges of using gene-editing tools to bring woolly mammoths and other long-gone species back from the dead. These “de-extincted” creatures would have to contend with a radically changed world that includes new habitats and diseases, Tina Hesman Saey wrote in her review “Resurrecting extinct species raises ethical questions” (SN:...

    11/29/2017 - 15:36 Evolution, Science & Society
  • Letters to the Editor

    Readers inspired by SN 10 scientists’ research

    Wanting more

    For the third year in a row, Science News profiled 10 early- and mid-career i­nnovators who are transforming their fields in “The SN 10: Scientists to watch” (SN: 10/14/17, p. 16).

    The profiles left some readers inspired, intrigued and wanting to know more about these scientists’ research.

    “Really enjoying these portraits, thanks, SN!” online reader Maia commented...

    11/15/2017 - 13:17 Science & Society, Robotics, Psychology
  • News

    Why the wiggle in a crowd’s walk can put a wobble in a bridge

    View the video

    Some bridges could really put a swing in your step.

    Crowds walking on a bridge can cause it to sway — sometimes dangerously. Using improved simulations to represent how people walk, scientists have now devised a better way to calculate under what conditions this swaying may arise, researchers report November 10 online in Science Advances.

    When a bridge —...

    11/10/2017 - 14:00 Physics
  • Letters to the Editor

    Readers intrigued by ancient animals’ bones

    Gut feelings

    Tests in mice show that microbes in the gut may tamper with the production of tiny molecules in brain regions known to help control anxiety, Maria Temming reported in “How gut bacteria may affect anxiety” (SN: 9/30/17, p. 12).

    Online reader Amanda wondered what has more influence: gut bacteria on anxiety, or anxiety on the bacterial makeup of the gut. If bacteria have...

    11/01/2017 - 12:11 Health, Evolution, Animals
  • Letters to the Editor

    Readers question photons colliding, black sea snakes and more

    Brain boost

    It’s possible that therapies such as external brain stimulation and neurofeedback, as well as some drugs, may one day boost brain flexibility. A new line of research suggests flexibility is important for learning, Laura Sanders reported in “Learning takes brain acrobatics” (SN: 9/16/17, p. 22).

    Online reader Glenn wondered if drugs for Parkinson’s disease and Huntington’s...

    10/18/2017 - 12:15 Particle Physics, Animals, Neuroscience
  • Feature

    M. Ehsan Hoque develops digital helpers that teach social skills

    M. Ehsan Hoque, 35Computer scientistUniversity of Rochester

    A growing band of digital characters that converse, read faces and track body language is helping humans to communicate better with one another. While virtual helpers that perform practical tasks, such as dealing with customer service issues, are becoming ubiquitous, computer scientist M. Ehsan Hoque is at the forefront of a more...

    10/04/2017 - 13:51 Computing, Technology, Psychology, Science & Society
  • News

    Cracking the body clock code wins trio a Nobel Prize

    Discoveries about the molecular ups and downs of fruit flies’ daily lives have won Jeffrey C. Hall, Michael Rosbash and Michael W. Young the Nobel Prize in physiology or medicine.

    These three Americans were honored October 2 by the Nobel Assembly at the Karolinska Institute in Stockholm for their work in discovering important gears in the circadian clocks of animals. The trio will...

    10/02/2017 - 17:22 Physiology, Genetics, Cells