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Your search has returned 135 articles:
  • Cool Jobs: Mapping the unknown

    Two hundred million years ago, Earth looked very different. Its landmass was pushed together into one giant continent. Today scientists refer to it as Pangaea. Over time, the rocky plates that make up Earth’s crust split this mega-continent apart. The plates later ripped those new continents apart, too, moving them around and smooshing some of them back together again. What resulted was the...

    07:15 AM, April 21, 2016 STEM Careers, Astronomy, Earth
    Readability Score: 7.4
  • Carbon dioxide could explain how geysers spout

    Yellowstone National Park, in the western United States, holds more geysers than any place else in the world. For 150 years, scientists have blamed hot water alone for fueling those spectacular watery eruptions. But scientists have been monitoring the innards of these gurgling geysers. And it’s not the hot water alone that’s making them spurt into the air like a fountain. Carbonation helps the...

    07:00 AM, April 20, 2016 Earth
    Readability Score: 8.1
  • Quake risk in some central states rivals California’s

    Northern Oklahoma is just as likely to suffer a damaging earthquake within the next year as are the most quake-prone areas of California. The reason: Earthquakes are no longer just a natural hazard. That’s a new finding of the U.S. Geological Survey (USGS). In its 2016 quake-hazards forecast, this agency includes for the first time earthquakes caused by human activity.

    It published its...

    07:00 AM, April 13, 2016 Earth
    Readability Score: 6.7
  • Smash hit: Making 'diamond' that's harder than diamonds

    Scientists suspected that if a meteorite smashed into Earth hard enough, it could change a type of soft, pure carbon — the graphite in pencil lead — into a mineral harder than diamond. Now, scientists say they have confirmed that can happen. They witnessed it from front-row seats.

    No, they didn’t have to dodge an incoming space rock. Standing in for the meteorite was a high-energy laser...

    07:00 AM, April 6, 2016 Chemistry, Physics, Earth
    Readability Score: 7.8
  • Cool Jobs: Careers on ice

    From his tent in eastern Greenland, Bruce Vaughn sees nothing but ice and snow. A cold wind blows constantly. On the warmest day temperatures may reach –8 degrees Celsius. That’s about 17° Fahrenheit.

    Vaughn doesn’t mind. Cold is what you get when you study ice. Vaughn is a glaciologist with the Institute of Arctic and Alpine Research (INSTAAR) in Boulder, Colo. He will be camped on this...

    07:15 AM, February 26, 2016 Earth, Weather & Climate, STEM Careers
    Readability Score: 6.8
  • Bright night lights, big science

    In polar regions of the world, a dazzling light show often plays out in the night sky. It's called an aurora. Up North, it’s also known as the northern lights. It looks as if someone had stirred bright lights into the darkness, like cream into coffee. The lights are often green, but they also might glow red, yellow or other colors. Every so often, these lights explode in brightness. Such...

    07:00 AM, February 3, 2016 Earth, Physics
    Readability Score: 7.7
  • Tracking warfare by ‘Earth shakes’

    When Michael Wysession says his research is a blast, he isn’t kidding. Wysession is a geophysicist at Washington University at St. Louis, Missouri. He is interested in how to track the booms and blasts of a war zone. And he can now do it from a great distance.

    Geophysicists use seismographs (SYZE-moh-grafs) — also called seismometers — to detect seismic waves. These waves are pulses of...

    07:00 AM, February 1, 2016 Physics, Earth
    Readability Score: 7.7
  • Bubbles may have sheltered Earth’s early life

    Earth offered a harsh environment for its earliest inhabitants. It now appears that some of them survived by living in a bubble. A beach bubble.

    The earliest life would have been single-celled microbes. Pockets of gas trapped along ancient shorelines would have given them a cozy place to call home about 3.2 billion years ago. Or so scientists reported December 4 in Geology. Such a snug...

    07:00 AM, January 7, 2016 Earth, Microbes, Fossils
    Readability Score: 7.1
  • Mystery ‘earmuffs’ sit deep inside Earth

    Deep within the Earth are two huge, mysterious blobs. They are about 1,500 kilometers (932 miles) below the planet’s surface. One sits beneath Africa. The other lies under the Pacific Ocean. Now, a team of mineralogists has found new clues to what makes up the blobs — and possibly what caused them.

    Each blob is the size of a continent, towering 1,500 kilometers (932 miles) high. They are...

    07:00 AM, January 4, 2016 Earth, Chemistry
    Readability Score: 7.0
  • News Brief: Why rainbows can lose some hues

    SAN FRANCISCO, Calif. — Some rainbows are missing a few colors. When the sun is low in the sky, those colorful arcs may contain only a fraction of the traditional red-to-violet hues. Or that’s what researchers reported December 17. They shared their new findings here at the American Geophysical Union’s fall meeting.

    Rainbows emerge as sunlight bends while passing through water droplets...

    07:00 AM, December 30, 2015 Physics, Earth, Light & Radiation
    Readability Score: 7.3

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