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  • illustration of seismic waves under a mountain
  • Lake Huron
Your search has returned 370 articles:
  • Editor's Note

    Expert eavesdroppers occasionally catch a break

    In July of 1972, NASA launched the first Landsat satellite into orbit around Earth. Since then, the spacecraft and its successors have transformed our understanding of Antarctica (and the rest of the planet, too). In the first year following the launch, Landsat’s images of the faraway continent showed “uncharted mountain ranges, vast ice movements and errors in maps as little as two years old...

    07/26/2017 - 13:15 Earth, Science & Society
  • Feature

    How earthquake scientists eavesdrop on North Korea’s nuclear blasts

    On September 9 of last year, in the middle of the morning, seismometers began lighting up around East Asia. From South Korea to Russia to Japan, geophysical instruments recorded squiggles as seismic waves passed through and shook the ground. It looked as if an earthquake with a magnitude of 5.2 had just happened. But the ground shaking had originated at North Korea’s nuclear weapons test site...

    07/25/2017 - 12:00 Earth
  • Letters to the Editor

    Readers question climate’s freshwater effects

    Water woes

    A recent survey of lakes around the globe found that from 1985 to 2009, most warmed while only several cooled, Alexandra Witze reported in “In hot water” (SN: 5/13/17, p. 18). Rising temperatures have consequences for every part of a lake’s food web, from algae to walleye to freshwater seals.

    “This article indicates that no pattern could be found to predict which lakes would...

    06/14/2017 - 10:47 Climate, Genetics
  • Feature

    Lakes worldwide feel the heat from climate change

    About 40 kilometers off Michigan’s Keweenaw Peninsula, in the waters of Lake Superior, rises the stone lighthouse of Stannard Rock. Since 1882, it has warned sailors in Great Lakes shipping lanes away from a dangerous shoal. But today, Stannard Rock also helps scientists monitor another danger: climate change.

    Since 2008, a meteorological station at the lighthouse has been measuring...

    05/01/2017 - 07:00 Climate, Ecosystems
  • Letters to the Editor

    Readers amazed by Amasia

    Saved by the Bell

    Physicists used light from stars to perform a cosmic Bell test, which verified that quantum particles were indeed “spooky,” Emily Conover reported in “Quantum effect passes space test” (SN: 1/21/17, p. 12).

    Reader George Mitchell took issue with Conover’s description of entangled photons before they are measured as having multiple polarizations at once. “We don’t know...

    02/22/2017 - 12:43 Quantum Physics, Earth, Technology
  • Awards

    20172017  Imagination AwardContent, Gravitational Waves Special ReportGravity waves from black holes verify Einstein’s predictionThe long road to detecting gravity waves Gravitational waves explained Video: What are gravitational waves?Continuing coverage of gravitational waves20162016 Folio: AwardsBest single article, Consumer, Science, Gene Drives Unleashed, Tina Hesman Saey (Dec. 12, 2015...
    01/30/2017 - 18:54
  • Editor's Note

    Mapping the future of continents and batteries

    The Earth is always moving beneath our feet. What seems permanent, still and solid is in fact constantly creeping. It’s easy to forget that as we race through our busy days, measuring time with digital clocks rather than the achingly slow beat of rock.

    In "Evidence falls into place for once and future supercontinents", contributing correspondent Alexandra Witze explores the long-term...

    01/11/2017 - 12:18 Earth, Technology, Science & Society
  • Feature

    Evidence falls into place for once and future supercontinents

    Look at any map of the Atlantic Ocean, and you might feel the urge to slide South America and Africa together. The two continents just beg to nestle next to each other, with Brazil’s bulge locking into West Africa’s dimple. That visible clue, along with several others, prompted Alfred Wegener to propose over a century ago that the continents had once been joined in a single enormous landmass....

    01/11/2017 - 08:38 Earth
  • Feature

    Year in review: Ozone hole officially on the mend

    In a rare bright spot for global environmental news, atmospheric scientists reported in 2016 that the ozone hole that forms annually over Antarctica is beginning to heal. Their data nail the case that the Montreal Protocol, the international treaty drawn up in 1987 to limit the use of ozone-destroying chemicals, is working.

    The Antarctic ozone hole forms every Southern Hemisphere spring...

    12/14/2016 - 07:34 Earth, Climate, Pollution, Science & Society
  • Editor's Note

    2016 Nobels: Science News fans read it here first

    This year’s Nobel Prizes honored scientific achievements that dedicated Science News readers (with good memories) would have found familiar. A dive into our archives revealed some interesting results.

    The physiology or medicine prize recognized autophagy, the cellular process by which living cells dispose of — or recycle — their biochemical garbage. Molecular biology writer Tina Hesman...

    10/19/2016 - 16:37 Science & Society