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E.g., 12/18/2018
E.g., 12/18/2018
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  • Greenland crater illustration
  • Kilauea lava fissures
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Your search has returned 1059 articles:
  • Year in Review

    Greenland crater renewed the debate over an ancient climate mystery

    For three years, a team of scientists kept a big secret: They had discovered a giant crater-shaped depression buried beneath about a kilometer of ice in northwestern Greenland. In November, the researchers revealed their find to the world.

    They hadn’t set out to find a crater. But in 2015, glaciologists studying ice-penetrating radar images of Greenland’s ice sheet, part of an...

    12/17/2018 - 08:27 Earth, Climate, Paleontology
  • News

    Here’s what was surprising about Kilauea’s 3-month-long eruption

    WASHINGTON — After a stunningly explosive summer, Kilauea, the world’s longest continuously erupting volcano, finally seems to have taken a break. But the scientists studying it haven’t. Reams of new data collected during an unprecedented opportunity to monitor an ongoing, accessible eruption are changing what’s known about how some volcanoes behave.

    “It was hugely significant,” says...

    12/11/2018 - 18:39 Earth
  • News

    Volcanic eruptions that depleted ocean oxygen may have set off the Great Dying

    A massive series of volcanic eruptions in Earth’s distant past left ocean creatures gasping for breath. Greenhouse gases emitted by the volcanoes dramatically lowered oxygen levels in the oceans, a deadly scenario that may have been the main culprit in the Great Dying, researchers report.

    Earth scientist Justin Penn of the University of Washington in Seattle and colleagues mapped out...

    12/06/2018 - 14:00 Oceans, Climate, Earth, Paleontology
  • Science Stats

    Half the world’s annual rain falls in just 12 days

    Half of the world’s annual rain and snow falls on the year’s 12 wettest days. As climate change brings more intense downpours, the same amount of precipitation could take just 11 days by the end of the century, scientists report online November 4 in Geophysical Research Letters. 

    “Climate scientists generally have this notion that precipitation falls unevenly in time,” says climate...

    11/30/2018 - 13:55 Climate, Earth
  • News

    Here’s how much climate change could cost the U.S.

    The United States is poised to take a powerful economic hit from climate change over the next century. Heat waves, wildfires, extreme weather events and rising sea levels could cost the country hundreds of billions of dollars in lost labor, reduced crop yields, health problems and crumbling infrastructure. 

    A report authored by hundreds of U.S. climate scientists from 13 federal agencies...

    11/28/2018 - 12:29 Climate, Earth
  • News

    A new algorithm could help protect planes from damaging volcanic ash

    Five to 10 minutes. That’s what it takes for superheated volcanic ash to shoot 11 kilometers into the sky — reaching altitudes at which commercial jets cruise and potentially harming their engines.

    Now scientists have developed a new algorithm that can identify and track explosive ash clouds soon after volcanoes erupt. Using satellite imagery, the program can measure the temperature,...

    11/27/2018 - 08:00 Earth, Technology, Computing
  • News

    A massive crater hides beneath Greenland’s ice

    There’s something big lurking beneath Greenland’s ice. Using airborne ice-penetrating radar, scientists have discovered a 31-kilometer-wide crater — larger than the city of Paris — buried under as much as 930 meters of ice in northwest Greenland.

    The meteorite that slammed into Earth and formed the pit would have been about 1.5 kilometers across, researchers say. That’s large enough to...

    11/14/2018 - 14:00 Earth, Climate
  • Say What?

    These tiny, crackly bubbles are a new type of volcanic ash

    Bread-crust bubble\Bred krəst ˈbəb(ə)l\ n.

    Tiny, gas-filled beads of volcanic ash with a scaly surface.

    Scientists have identified a new type of volcanic ash that erupted from a volcano in central Oregon roughly 7 million years ago. The particles are similar to larger bread-crust bombs, which form as gases trapped inside globs of lava expand, cracking the bombs’ tough exterior. Bread-...

    11/09/2018 - 12:00 Earth
  • News in Brief

    Bizarre metals may help unlock mysteries of how Earth’s magnetic field forms

    Weird materials called Weyl metals might reveal the secrets of how Earth gets its magnetic field.

    The substances could generate a dynamo effect, the process by which a swirling, electrically conductive material creates a magnetic field, a team of scientists reports in the Oct. 26 Physical Review Letters.

    Dynamos are common in the universe, producing the magnetic fields of the Earth...

    11/07/2018 - 06:00 Condensed Matter, Earth
  • News in Brief

    Physicists measured Earth’s mass using neutrinos for the first time

    Puny particles have given scientists a glimpse inside the Earth.

    For the first time, physicists have measured the planet’s mass using neutrinos, minuscule subatomic particles that can pass straight through the entire planet. Researchers also used the particles to probe the Earth’s innards, studying how the planet’s density varies from crust to core.

    Typically, scientists determine...

    11/05/2018 - 11:00 Particle Physics, Earth