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Seismogram

Bouncing seismic waves reveal distinct layer in Earth’s inner core

Artist's impression of Ceratosuchops & orientation of skull endocast. Credit: Anthony Hutchings

Oldest spinosaur brains revealed

Earth

Deep earthquakes could reveal secrets of the Earth’s mantle

Image of fruit belonging to Palaeophytocrene chicoensis. The Sierra College Museum of Natural History is the permanent repository for this fossil. Credit: Brian Atkinson.

A fossil fruit from California shows ancestors of coffee and potatoes...

A diagram of the asthenosphere, which aids plate tectonics, where researchers at the UT Austin Jackson School of Geosciences say they detected a global layer of partial melt (shown in speckled red). Credit: Junlin Hua, UT Jackson School of Geosciences

Scientists detect molten rock layer hidden under Earth’s tectonic plates

What once appeared as a fossil of the primitive animal Dickinsonia turned out to be notihng more than a decaying beehive, shown falling off the rock on the right just a couple years later. (Gregory Retallack/Joe Meert)

Mistaken fossil rewrites history of Indian subcontinent for second time

The fossilized skull of Coccocephalus wildi, an early ray-finned fish that swam in an estuary 319 million years ago. The fish is facing to the right, with the jaws visible in the lower right portion of the fossil. The eye socket is the circular, bumpy feature above the jaws. This fish would have been 6 to 8 inches long, about the size of a bluegill. Photo credit: Jeremy Marble, University of Michigan News.

319-million-year-old fish preserves the earliest fossilized brain of a backboned animal

After five decades of dormancy, the Cumbre Vieja volcano on La Palma in the Canary Islands began erupting on Sept. 19, 2021. This image is from October 2021. Credit: Credit: Esteban Gazel/Provided

Precise magma locations aid volcanic eruption forecasts

hydrothermal vent

Deep-sea black carbon comes from hydrothermal vents

Meteorites

Meteorites reveal likely origin of Earth’s volatile chemicals

Microscopic photograph of a lower jaw from Funcusvermis gilmorei soon after it was recovered during microscopic sorting of sediment from the Thunderstorm Ridge fossil site in the Petrified Forest National Park Paleontology Lab. Photo by Ben Kligman for Virginia Tech.

New geosciences study shows Triassic fossils that reveal origins of living...

inner core (USC Graphic/Edward Sotelo)

Earth’s inner core rotating slower than surface

The new study in Geophysical Research Letters shows a previously undiscovered change in tectonic plate thickness across the Denali Fault in Alaska impacts where it is located, shedding light on how major faults and earthquakes occur. Credit: Isabella Gama and Karen Fischer.

Researchers uncover secrets on how Alaska’s Denali Fault formed

A view of Kīlauea’s summit lava lake. The lava lake is contained within a crater, which is set within the larger Halema‘uma‘u Crater. New research aims to understand the activity that led to the eruption in 2018 in Kīlauea’s lower East Rift Zone. Credit: USGS

Rare opportunity to study short-lived volcanic island reveals sulfur-metabolizing microbes

(A) Completely unhatched egg from the clutch P43. (B) Almost fully intact circular outline of egg possibly indicating it to be unhatched and no loose eggshells are found in the clutch P6. (C) Compressed egg from clutch DR10 showing hatching window (arrow showing gap) and few eggshells collected just around the hatching window (circled) which possibly represent the remnants of hatching window. (D) Egg from clutch P26 showing curved outline. (E) Deformed egg from clutch P30 showing egg surfaces slipping past each other. Credit: Dhiman et al., 2023, PLOS ONE, CC-BY 4.0 (creativecommons.org/licenses/by/4.0/)

Researchers uncover 92 fossil nests belonging to some of India’s largest...

Scanning electron microscope images of tiny, ancient planktonic foraminifera, recovered from Gubbio, Italy. Credit: Gabriella Kitch

Malformed seashells, ancient sediment provide clues about Earth’s past

Dimitri Laurent explores a typical gallery in the Nébélé Cave, which was formed by sulfuric acid speleogenesis. You can see a deep notch that indicates the former presence of a river, and sodium sulfate on the left that is produced from weathering by sulfuric acid. Credit: Christophe Durlet

Unearthing the sources of cave-forming sulfuric acid

A view from the summit of Hunga Tonga-Hunga Ha’apai in 2017 (CC BY-SA 4.0 Damien Grouille/Wikimedia Commons)

Looking back at the Tonga eruption

The extensive accumulations of obsidian artefacts in level C. a,b, General view of the level and detail of artefact density along the MS cliff (a) and inset (b). c,d, General view (c) and detail (d) of the artefact concentration (mainly handaxes) in the test pit of 2004. Credit: Nature Ecology & Evolution (2023). DOI: 10.1038/s41559-022-01970-1

Obsidian handaxe-making workshop from 1.2 million years ago discovered in Ethiopia

A figure from the study showing teeth from a megaraptor dinosaur from various view points. The black tooth preserves most of the tooth crow. The tan tooth is missing the crown apex and base. Credit: Davis et al.

Fossils Reveal Dinosaurs of Prehistoric Patagonia

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