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E.g., 08/18/2017
E.g., 08/18/2017
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  • solar loop structures
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Your search has returned 572 articles:
  • News

    Why are the loops in the sun’s atmosphere so neat and tidy?

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    When the Aug. 21 solar eclipse unveils the sun’s normally dim atmosphere, the corona will look like an intricate, orderly network of loops, fans and streamers. These features trace the corona’s magnetic field, which guides coronal plasma to take on the shape of tubes and sheets.

    These wispy coronal structures arise from the magnetic field on the sun’s visible surface...

    08/17/2017 - 07:00 Astronomy, Earth, Science & Society, Physics
  • News

    What can the eclipse tell us about the corona’s magnetic field?

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    The star of any solar eclipse is, of course, the sun. And total eclipses give the sun’s wispy, tenuous atmosphere the spotlight. This region, called the corona, is normally too dim to observe directly. But with the moon blocking the sun’s bright disk, the corona comes into view.

    And the view is dazzling. The corona’s hot plasma is a radiant, ever-changing tiara, full...

    08/16/2017 - 07:00 Astronomy, Earth, Science & Society, Physics
  • News

    Can the eclipse tell us if Einstein was right about general relativity?

    Almost a century ago, a solar eclipse revealed the geometry of spacetime. Now, physicists and amateur astronomers — armed with do-it-yourself gear — are going to double check that math during the Aug. 21 solar eclipse.

    In his 1915 general theory of relativity, Albert Einstein predicted that the sun’s gravity should distort spacetime in its vicinity. Stars behind the sun would appear in...

    08/15/2017 - 07:00 Astronomy, Science & Society, Physics
  • News

    What can we learn about Mercury’s surface during the eclipse?

    On the morning of August 21, a pair of jets will take off from NASA’s Johnson Space Center in Houston to chase the shadow of the moon. They will climb to 15 kilometers in the stratosphere and fly in the path of the total solar eclipse over Missouri, Illinois and Tennessee at 750 kilometers per hour.

    But some of the instruments the jets carry won’t be looking at the sun, or even at Earth...

    08/14/2017 - 07:00 Astronomy, Earth, Science & Society, Planetary Science
  • News

    What happens in Earth’s atmosphere during an eclipse?

    As the moon’s shadow races across North America on August 21, hundreds of radio enthusiasts will turn on their receivers — rain or shine. These observers aren’t after the sun. They’re interested in a shell of electrons hundreds of kilometers overhead, which is responsible for heavenly light shows, GPS navigation and the continued existence of all earthly beings.

    This part of the...

    08/13/2017 - 07:00 Astronomy, Earth, Science & Society
  • News

    What do plants and animals do during an eclipse?

    Many accounts of solar eclipses include tales of animals behaving strangely: Birds fall silent. Bees return to the hive.

    “There’s a lot of anecdotal evidence for how animals and even plants respond to totality,” when the moon completely blocks the sun, says Elise Ricard, spokesperson for an eclipse project called Life Responds at the California Academy of Sciences in San Francisco. “But...

    08/12/2017 - 07:00 Astronomy, Earth, Science & Society, Animals
  • News

    Why is this year’s solar eclipse such a big deal for scientists?

    The sky will go dark. The temperature will drop. Stars will shine in the middle of the day. For the first time in nearly a century, millions of Americans from coast-to-coast will witness a total solar eclipse. Those who have watched the sun suddenly snuff out say it’s an otherworldly feeling. It can be humbling. It can be spiritual. It can change the course of history (SN: 5/13/17, p. 29)....

    08/11/2017 - 07:00 Astronomy, Earth, Physics, Science & Society
  • Feature

    What will scientists learn from the Great American Eclipse?

    The Great American Eclipse on August 21 will be much more than a spectacle. As the moon passes in front of the sun, scientists will be doing some serious work. A fleet of telescopes, spectrometers and polarizers will turn skyward to look directly at the parts of our nearest star that are usually invisible.

    But is there really any science left to do? Historically, eclipses were the only...

    08/11/2017 - 07:00 Astronomy, Science & Society
  • News

    More U.S. adults are drinking, and more heavily

    The United States has a serious drinking problem. Since 2001, heavy drinking and alcohol use disorder have risen dramatically, according to a new study that surveyed tens of thousands of adults. The numbers reveal “a public health crisis,” the authors say.

    The increases were especially large among those 65 years and older, minorities and women, researchers report online August 9 in JAMA...

    08/09/2017 - 13:30 Health, Science & Society
  • Feature

    Ticks are here to stay. But scientists are finding ways to outsmart them

    Thanks, Holly Gaff. Soon, anyone straining to tweeze off a mid-back tick can find answers to the obvious question: What if humankind just went after the little bloodsuckers with killer robots?

    Gaff, who calls herself a mathematical eco­epidemiologist, at Old Dominion University in Norfolk, Va., is one of the few people collecting real field data on the efficacy of tick-slaying robots....

    08/09/2017 - 11:00 Animals, Science & Society