San Andreas fault

Could geometry offer a new explanation for why earthquakes happen?

Yowah Nut Opal

Yowah Nut Opal

Photograph of a T. rex skeletal cast at Senckenberg Museum Frankfurt, Germany. T. rex lived at the end of the Cretaceous (about 66 million years ago) and was exclusive to western North America. Credit: Kai R. CasparKai R. Caspar

T. Rex not as smart as previously claimed

The artist’s impression shows a dromaeosaur, a type of feathered theropod, in the snow. This dinosaur group is popularly known as a raptor. A well-known dromaeosaur is Velociraptor, portrayed in the film Jurassic Park. Credit: Davide Bonadonna/Universidade de Vigo/UCL

First ‘warm-blooded’ dinosaurs may have emerged 180 million years ago

The specimen under natural light (a) and UV light (b) showing distinct fluorescence hues for bone (cyan) and soft tissues (yellow) against a dark purple sedimentary matrix.

Researchers discover hidden step in dinosaur feather evolution

These ancient metamorphic rocks called gneisses, found on the Arctic Coast, represent the roots of the continents now exposed at the surface. The scientists said sedimentary rocks interlayered in these types of rocks would provide a heat engine for stabilizing the continents. Credit: Jesse Reimink. All Rights Reserved.

Rock steady: Study reveals new mechanism to explain how continents stabilized

Coal core

Can coal mines be tapped for rare earth elements?

Magnified through a microscope, diatoms, which are a type of siliceous microalgae preserved within sediment, helped the researchers determine the salinity levels of the core samples. Photo courtesy of Jessica DePaolis.

Subduction zone splay faults compound hazards of great earthquakes

Fossilized Douglassarachne acanthopoda, noted for its up-armored spiny legs, might have resemblance to modern harvestmen, but with a more experimental body plan. Credit: Paul Selden

308-million-year-old arachnid discovered in the Mazon Creek locality

Telephoto view looking east of the active lava lake within Halema‘uma‘u at the summit of Kīlauea. Credit: N. Deligne / USGS / Public Domain

Earth scientists describe a new kind of volcanic eruption

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