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  • cows grazing
Your search has returned 25 articles:
  • Feature

    Getting creative to cut methane from cows

    View the video

    In a pasture outside Edmonton, Canada, you’ll find a few dozen cows doing what cows do: mostly eating. The average animal spends eight-plus hours a day filling its belly, or as is the case with cows, bellies. Along with that enormous appetite, cows are born with the ability to digest almost any plant they can chew, thanks to a multichambered stomach and a helpful army of...

    11/18/2015 - 16:36 Animals, Microbes, Climate
  • Letters to the Editor

    Lucy's new neighbor, downloading New Horizon's data and more reader feedback

    New Horizons phones home

    In “Pluto: Explored” (SN: 6/27/15, p. 16), Christopher Crockett chronicled New Horizons’ long journey to the dwarf planet. He followed up with a report on the successful flyby in “Pluto’s icy landscape comes into view” (SN: 8/8/15, p. 6).

    “Having read that early images of Pluto encoded in radio waves would take 4.5 hours to reach Earth from the New Horizons space...

    08/12/2015 - 13:56 Astronomy, Neuroscience, Human Evolution
  • Feature

    Online causes may attract more clicks than commitments

    The Save Darfur Cause on Facebook had all the makings of a slam dunk cyber success. More than a million people joined the social media site’s digital movement a few years ago to save the people of Sudan’s Darfur region from mass slaughter.    

    There was a hitch in Facebook’s humanitarian giddy-up, though: The vast majority of people who enlisted in the Save Darfur Cause recruited no one...

    06/27/2014 - 14:04 Psychology, Networks, Science & Society
  • News

    Sun shines new life on Kepler space telescope

    Reports of Kepler’s death have been greatly exaggerated.

    NASA’s flagship planet hunter, which netted nearly 1,000 confirmed exoplanets during its four-year mission, is getting a second chance at life with a little help from the sun. The space agency has given the new mission, dubbed K2, the go-ahead to start observations at the end of May.

    Kepler was knocked out of commission last...

    05/23/2014 - 13:10 Exoplanets, Astronomy
  • Feature

    Deep network

    Gas bubbles effervesce from a mound of muck on the seafloor in a deep submarine canyon off the west coast of Canada. Microbes beneath the sediment belch the bubbles after feasting on the ancient remains of algae, sea critters and their poop: a primordial stew that’s been simmering since long before humans walked the Earth.

    This gassy oasis attracts an odd collection of critters. Worms...

    10/04/2013 - 15:00 Earth, Technology
  • Feature

    View to a cell

    Imagine if your best knowledge of human anatomy came from viewing the body through binoculars from a mile away. You might make out the shape of a hand, but knuckles and fingernails would elude you. Experiments could tell you there’s a pumping heart inside, but to see that heart with any clarity you would have to fix it in formaldehyde or liquid nitrogen, blast it with electrons and add dyes to...

    05/28/2013 - 16:22 Cells, Biophysics
  • Feature

    The Digital Camera Revolution

    Take a grainy, blurred image of a formless face or an illegible license plate, and with a few keystrokes the picture sharpens and the killer is caught — if you’re a crime-scene tech on TV. From Harrison Ford in Blade Runner to CSI, Criminal Minds and NCIS, the zoom-and-enhance maneuver has become such a staple of Hollywood dramas that it’s mocked with video montages on YouTube.

    ...
    01/13/2012 - 06:54
  • Feature

    Software Scientist

    Games such as chess have long been mastered by thinking machines. But weightier intellectual feats, such as deducing the laws of nature, have remained the domain of living, breathing brainiacs — until now.

    A new computer program called Eureqa comes up with fundamental mathematical laws, the great equations of textbooks and history, from scratch. Feed Eureqa a mess of raw...

    12/30/2011 - 09:46 Technology
  • Feature

    Death of a Continent, Birth of an Ocean

    To those who live there, east Africa’s Afar region is “the place the devil plows.” One of the hottest and lowest areas on Earth, it is a landscape of baking desert and barren lava flows. To scientists, though, Afar means something more promising: geology in the raw.

    There, on the edge of Africa, the continent is splitting apart. Pulled inexorably by the...

    06/17/2011 - 10:30 Earth & Environment
  • Feature

    The Science of Slumber

    Read features from the special edition Reports on the science of sleep. | GoDownload a PDF of the special edition Exclusive for Science News subscribers.Download | Subscribe

    Despite its utter mundanity, sleep resists simple scientific explanation. It appears to recuperate the body and refresh the mind, but exactly how isn’t at all clear. The brain appears to be as active in some of the...

    10/09/2010 - 15:15