Tuesday, January 21, 2020
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Earth may be 140 years away from reaching carbon levels not...

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Graphic showing the Transition Zone inside the Earth Princeton seismologist Jessica Irving worked with then-graduate student Wenbo Wu and another collaborator to determine the roughness at the top and bottom of the transition zone, a layer within the mantle, using scattered earthquake waves. They found that the top of the transition zone, a layer located 410 kilometers down, is mostly smooth, but the base of the transition zone, 660 km down, in some places is much rougher than the global surface average. “In other words, stronger topography than the Rocky Mountains or the Appalachians is present at the 660-km boundary,” said Wu. NOTE: This graphic is not to scale. Credit: Kyle McKernan, Office of Communications
Earth

Massive Bolivian earthquake reveals mountains 660 kilometers below our feet

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Bubbles of liquid carbon dioxide float out of the seafloor at a vent on Northwest Eifuku volcano off the coast of Japan.
Earth

How undersea gases once helped superheat our planet

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pillow basalts from undersea volcanic eruptions,
Earth

Researchers help define Southern Ocean’s geological features

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This is a view of Coalcliff in New South Wales, Australia, where researchers discovered evidence that Earth's largest extinction may have extinguished plant life nearly 400,000 years before marine animal species disappeared. Credit: Christopher Fielding
Earth

Earth’s largest extinction event likely took plants first

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Image depicts the change in impact rate modeled in this paper. Some of the craters used in the study on both the moon and Earth are highlighted in the background. Credit: Data from NASA GSFC / LRO / Arizona State University; Artwork by Rebecca Ghent
Earth

Scientists find increase in asteroid impacts on ancient Earth by studying...

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Earth

Rare-earth elements discovered in Georgia kaolin mines, study finds

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Yellowstone National Park
Earth

Surviving one of Earth’s most extreme environments

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Yellowstone National Park
Earth

A microbe’s membrane helps it survive extreme environments

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The iron cycle in the ocean
Earth

Tracing iron in the North Pacific

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Ocean
Earth

Seismic study reveals huge amount of water dragged into Earth’s interior

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Artist depiction of the MMS spacecraft that provided the first view of magnetic reconnection. Credit: NASA/GSFC
Earth

Scientists Help Provide First-Ever Views of Elusive Energy Explosion

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The experiment on La Palma: The laser beam (yellow) generates an artificial guide star in the mesosphere. This light is collected in the receiver telescope (front left). The laser source and the receiver telescope are eight meters away from each other. Credit: Copyright Felipe Pedreros Bustos
Earth

Earth’s magnetic field measured using artificial stars at 90 kilometers altitude

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Earth

Scientists theorize new origin story for Earth’s water

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Earth

Researchers confirm Earth’s inner core is solid

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The island of Daphne to the north of Santa Cruz
Earth

Mineral discoveries in the Galapagos Islands pose a puzzle as to...

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Mekong River
Earth

New understanding of Mekong River incision

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Earth's mantle (dark red) lies below the crust (brown layer near the surface) and above the outer core (bright red).
Earth

A wrench in Earth’s engine: Stagnant slabs

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The Hunga Island Tonga Hunga Ha'apai
Earth

Mountains create biodiversity

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Panhandle of Texas
Earth

The origins of the High Plains landscape

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