New lab work suggests that rock roughness affects earthquake aftershock dynamics along faults. Credit: Dextersinister/Wikimedia Commons, CC BY-SA 4.0

Rougher faults may generate more earthquake aftershocks

Periechocrinus, a Silurian crinoid. BGS © UKRI.

The largest fossil crinoids ever

Argentinosaurus is still widely considered the heaviest dinosaur. Based on its mid-range estimate, it weighed the same as about nine T. rexes or 13 African elephants!

What was the largest dinosaurs?

Natural 236.40 Ct Huge Red Painite Rough Burmese Facet Raw Loose Gemstone Credit: supremgem/etsy

Painite: The Most Unique Gemstone in the World

Artist’s impression of two Troodons with a common nest. Illustration: Alex Boersma/PNAS

Analysis of dinosaur eggshells: Bird-like Troodon laid 4 to 6 eggs...

An illustration showing how some Earth’s signature features, such as its abundance of water and its overall oxidized state could potentially be attributable to interactions between the molecular hydrogen atmospheres and magma oceans on the planetary embryos that comprised Earth’s formative years. Illustration by Edward Young/UCLA and Katherine Cain/Carnegie Institution for Science.

How did Earth get its water?

Map of the tectonic plates (credit: Getty Images)

How did the Andes Mountains get so huge?

The concurrent subduction of the Pacific and Atlantic plates resulted in the formation of a mantle plum and the ascent of magma. (ill./©: Nicolas Riel)

Plate tectonic processes in the Pacific and Atlantic during the Cretaceous...

The massive Feb. 6 quake in Eastern Turkey killed more than 50,000 people and toppled more than 100,000 buildings. (Photo/Ahmet Ertas via Pixabay)

Turkey’s next quake: USC research shows where it could happen —...

Ridgecrest seismic station deployed in 2019. | USGS

Ridgecrest faults increasingly sensitive to solid Earth tides before earthquakes

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