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Your search has returned 633 articles:
  • News

    Americans would welcome alien life rather than fear it

    AUSTIN, Texas — If alien microbes crash-land on Earth, they may get a warm welcome.

    When people were asked how they would react to the discovery of extraterrestrial microbial life, they give generally positive responses, researchers reported at a news conference February 16 at the annual meeting of the American Association for the Advancement of Science.

    This suggests that if...

    02/16/2018 - 17:00 Astrobiology, Microbiology, Science & Society
  • News

    Genes could record forensic clues to time of death

    Dying, it turns out, is not like flipping a switch. Genes keep working for a while after a person dies, and scientists have used that activity in the lab to pinpoint time of death to within about nine minutes.

    During the first 24 hours after death, genetic changes kick in across various human tissues, creating patterns of activity that can be used to roughly predict when someone died,...

    02/13/2018 - 17:12 Epigenetics, Microbes, Science & Society
  • Science & the Public

    4 questions about the new U.S. budget deal and science

    Editor’s Note: This story was updated February 9 to note President Trump’s fiscal year 2019 budget proposal.

    A two-year spending package, passed by Congress in the wee hours of February 9 and signed into law by President Trump hours later, could add to the coffers of U.S. science agencies.

    The bipartisan deal raises the caps on defense and nondefense discretionary spending by...

    02/09/2018 - 18:16 Science & Society
  • 50 years on, nuclear fusion still hasn’t delivered clean energy

    Power within 30 years

    Controlled thermonuclear fusion is moving so well that full-scale development could begin within five years, says Dr. David J. Rose....It might take 20 to 30 years beyond that before fusion could move into the power grid, though, he predicts. — Science News, February 17, 1968

    Update

    Governments and private-sector start-ups are still trying to wrangle...

    02/08/2018 - 07:00 Physics, Technology, Science & Society
  • Letters to the Editor

    Readers ask about supernovas, dark energy and more

    Dying light

    Supernova iPTF14hls has erupted continually since its discovery in 2014, fluctuating in brightness at least five times. It may have had two other outbursts in the past, Lisa Grossman reported in “This star cheated death, exploding again and again” (SN: 12/9/17, p. 8).

    Reddit user Bobgushmore wondered if the exploding star might actually be a supernova impostor similar to...

    02/07/2018 - 15:30 Astronomy, Physics, Science & Society
  • Editor's Note

    In play, kids and scientists take big mental leaps

    I know a lot of adults who don’t like to cook, but I’ve never met a child who doesn’t enjoy playing with a toy kitchen — or one who doesn’t want to help chop vegetables for dinner. Other versions of practical play: A cousin, at the age of just 4 or 5, asked for only one thing for Christmas — a snow brush. And on a beach trip last year, I witnessed a duo of 2-year-olds squealing with...
    02/07/2018 - 15:30 Science & Society, Psychology, Anthropology
  • Scicurious

    Wikipedia has become a science reference source even though scientists don’t cite it

    Wikipedia: The settler of dinnertime disputes and the savior of those who cheat on trivia night. Quick, what country has the Nile’s headwaters? What year did Gershwin write “Rhapsody in Blue”? Wikipedia has the answer to all your burning trivia questions — including ones about science.

    With hundreds of thousands of scientific entries, Wikipedia offers a quick reference for the molecular...

    02/05/2018 - 07:00 Science & Society
  • Reviews & Previews

    ‘Death: A Graveside Companion’ offers an outlet for your morbid curiosity

    Death: A Graveside CompanionJoanna Ebenstein (ed.)Thames & Hudson, $40

    Death: A Graveside Companion makes for an unusual coffee-table book, with its coppery etched Grim Reaper on the cover. Yet you may be surprised by how much fun it is to pore through the book’s lavish artwork of skulls, cadavers and fanciful imaginings of the afterlife.

    There is, after all, a reason for...

    02/04/2018 - 08:00 Science & Society, History of Science, Anthropology
  • Reviews & Previews

    ‘Machines That Think’ predicts the future of artificial intelligence

    Machines That ThinkToby WalshPrometheus Books, $16

    Movies and other media are full of mixed messages about the risks and rewards of building machines with minds of their own. For every manipulative automaton like Ex Machina’s Ava (SN: 5/16/15, p. 26), there’s a helpful Star Wars droid. And while some tech titans such as Elon Musk warn of the threats artificial intelligence presents...

    02/02/2018 - 15:20 Artificial Intelligence, Computing, Science & Society
  • Editor's Note

    Memory remains elusive, but the search continues

    In Theaetetus, Plato likened memory to a wax tablet, which would adopt the image of whatever was impressed upon it. Aristotle is said to have called memory “the scribe of the soul.” Others have viewed memory as a stomach, storehouse or switchboard, while acknowledging that it sometimes seems like a leaky bucket.

    St. Augustine and Robert Hooke also thought deeply about memory. But...

    01/24/2018 - 13:35 Science & Society, History of Science, Neuroscience