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Field area and glacier retreat due to calving. (A) Location of Börgen Bay at the West Antarctic Peninsula. Bathymetry from ETOPO 1 global relief model (74). (B) Bathymetry of Börgen Bay from multibeam echosounder data and coastline/topography from Landsat imagery (see Materials and Methods). Dots mark locations of conductivity-temperature-depth (CTD) profiles used here, with profiles taken before (red) and after (blue) the calving event. (C) Landsat images of the William Glacier front from (top) 17 January 2020 and (bottom) 24 January 2020. In both panels, the orange line marks the glacier front on 17 January 2020 to highlight the retreat of the glacier between those dates. Credit: Science Advances (2022). DOI: 10.1126/sciadv.add0720

Underwater tsunamis created by glacier calving cause vigorous ocean mixing

Giant sea scorpions once roamed the ancient Devonian sea 400 million years ago. Now, researchers are learning more about that world. Credit: Aunt Spray | Shutterstock.com

Tiniest ever ancient seawater pockets revealed

A dazzling play of colors highlights Southern California’s long lost clam. Photo Credit: Jeff Goddard

Rare ‘fossil’ clam discovered alive

Impressions of the Ediacaran fossils Dickinsonia (at center) with the smaller anchor shaped Parvancorina (left) in sandstone of the Ediacara Member from the Nilpena Ediacara National Park in South Australia. Photo courtesy of Scott Evans.

Geobiologists shine new light on Earth’s first known mass extinction event...

SMU paleontologists helped find a new species of pterosaurs in Angola, where fossils of other large marine animals have been found. E. otyikokolo can be seen flying above the ocean in the ancient picture. Artwork by Karen Carr Studio.

New pterosaur species found in sub-Saharan Africa

Interactions of mantles at different depths. Credit: Prof. Dai Liqun's team.

Molybdenum isotopes reveal interaction between subducting slabs and mantles

Artist's reconstruction of Gangtoucunia aspera as it would have appeared in life on the Cambrian seafloor, circa 514 million years ago. The individual in the foreground has part of the skeleton removed to show the soft polyp inside the skeleton. Reconstruction by Xiaodong Wang.

500 million year-old fossils reveal answer to evolutionary riddle

The Hunga Tonga–Hunga Haʻapai eruption as seen by Japan's Himawari-8 satellite on 15 January 2022. Top image: Eruption at 4:20 UTC (about 15 minutes into the eruption); Middle image: Eruption at 4:50 UTC (45 minutes into the eruption); Bottom image: Eruption at 5:40 UTC (1 hour 35 minutes into the eruption). Image credit: Simon Proud / STFC RAL Space / NCEO / JMA.

Tonga volcano had highest plume ever recorded

Scallop Pleuronectites from the Triassic period with fluorescent colour pattern; left under normal light, right under UV light. Photo: Klaus Wolkenstein

Glowing fossils: Fluorescence reveals color patterns of earliest scallops

Structure layers of the earth.

How magnetism could help explain Earth’s formation

Paleohistological transverse sections of select elements of (A) large- and (B) medium-bodied individuals of the Eutaw ornithomimosaurs, and (C) relative body-size of the Eutaw ornithomimosaurs within known ornithomimosaur taxa through a geological time. Credit: Tsogtbaatar et al., CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Ostrich-like dinosaurs from Mississippi are among the world’s largest at over...

Earth

Laying geological groundwork for life on Earth

Jeholornis. Image courtesy of Han Hu et al.

Fossil bird’s skull reconstruction reveals a brain made for smelling and...

Derbyshire fossil study reveals insights into Peak District's 12 million year-old climatic past

Derbyshire fossil study reveals insights into Peak District’s 12 million year-old...

Earth, core, mantle

Researchers discover previously unknown mineralogy of the deep Earth

In 2010, two of the study's authors—David Shuster of UC Berkeley (left) and Yosemite Park geologist Greg Stock (right)—collected rock samples from the rim of Yosemite Valley, where the granite has eroded only slowly over the last 50 million years. In the distance is the upper Merced River valley. Former UC Berkeley graduate student Johnny Webb is at center. Credit: Kurt Cuffey, UC Berkeley

How old is California’s Yosemite Valley?

Using Mössbauer spectroscopy, Osaka Metropolitan University scientists investigate the iron ion status of pyroxenes, a major group of rock-forming silicate minerals. Their study revealed that in pyroxene crystals consisting of roughly 50% calcium, the tensor that determines the ratios of iron ions at the Mössbauer spectral peaks is independent of the iron content but dependent on the calcium content. Credit: Shinoda, OMU

Calcium content determines the peak intensity ratio due to iron ions...

Mount Edgecumbe rises in the foreground with Crater Ridge behind and to the north on May 19, 2022. Photo by Max Kaufman/Alaska Volcano Observatory

Research reveals magma activity beneath Mount Edgecumbe

A depiction of an asteroid heading toward Earth, with the moon in the background. (Image credit: Juan Gartner via Getty Images)

The largest meteorite impacts on Earth

Calcium oxalate crystals - In living plants, calcium oxalate crystals can take on bizarre shapes (from left: hornbeam, button mangrove, Australian nettle) Credit: © Mahdieh Malekhosseini / University of Bonn

New field of research: Crystal traces in fossil leaves

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