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A Trapiche emerald from Muzo Mine, Colombia. Credit: Luciana Barbosa/Wikipedia

Trapiche Emerald : What is a Trapiche Emerald? How Does a...

The Pink Star diamond, which fetched the highest price ever for a jewel offered at auction, is displayed at Sotheby's in Hong Kong on March 29. Credit: Vincent Yu/AP

Pink Star Diamond : The largest known Pink Diamond

Life restoration of Kongonaphon kely, a newly described reptile near the ancestry of dinosaurs and pterosaurs, shown to scale with human hands. The fossils of Kongonaphon were found in Triassic (~237 million years ago) rocks in southwestern Madagascar and demonstrate the existence of remarkably small animals along the dinosaurian stem. Art by Frank Ippolito / © American Museum of Natural History

A tiny ancient relative of dinosaurs and pterosaurs discovered

The fossilized remains of this Xiphactinus - similar to the one found in Argentina - was discovered in the US state of Kansas and sold at auction in 2010

Fossil of giant 70m year-old fish found in Argentina

An artist's interpretation of Dilophosaurus based on the latest research. Credit: Brian Engh / The Saint George Dinosaur Discovery Site.

Famous ‘Jurassic Park’ dinosaur is less lizard, more bird

Earth

Study could rewrite Earth’s history

Three water-filled maars, created by volcanic eruptions, in Germany’s Eifel region. Credit: Martin Schildgen/Wikimedia Commons

New evidence of long-term volcanic, seismic risks in northern Europe

Earth magnetic field. Credit: Carnegie Institution for Science

How does Earth sustain its magnetic field?

Earth’s geomagnetic field

Earth’s magnetic field can change 10 times faster than previously thought

The composition of fossilised zooplankton shells has enabled the reconstruction of past pH and CO2. Credit: University of Southampton

By 2025, carbon dioxide levels in Earth’s atmosphere will be higher...

This illustration shows a life restoration of a pod of Ankylorhiza tiedemani hunting. Credit: Robert W Boessenecker

15-foot-long skeleton of extinct dolphin suggests parallel evolution among whales

Artist's impression of the giant dormouse (left) and its nearest living relative the garden dormouse (right). Credit: James Sadler, University of York

Researcher reconstructs skull of two million year-old giant dormouse

Diverse structural-colored insects in mid-Cretaceous amber from northern Myanmar. Credit: NIGPAS

Amber fossils unlock true color of 99-million-year-old insects

An individual of Ankylosaurus magniventris, a large armoured dinosaur species, witnesses the impact of an asteroid, falling on the Yucatán peninsula 66 million years ago. Not even its large size and thick armour sheltered its kind from the violence of this cosmic disaster. Credit: Fabio Manucci

Asteroid impact, not volcanoes, made the Earth uninhabitable for dinosaurs

Hauffiopteryx altera. Credit: McGill University

New species of Ichthyosaur discovered in museum collection

An Underwater Volcanic Eruption. Credit: NSF and NOAA

How volcanoes explode in the deep sea

Next to Prof. Oded Aharonson is the tri-axial Helmholtz Coil used to generate the magnetic field during the growing of the ice samples

The magnetic history of ice

False color satellite image of the Taimali catchment area in southeastern Taiwan in August 2009 after typhoon Morakot. Red: vegetated surface, grey: barren surface (Image: LANDSAT-7 / NASA, JPL).

Typhoon changed earthquake patterns

A new study shows that giant ore deposits are tightly distributed above where rigid rocks that comprise the nuclei of ancient continents begin to thin, far below the surface (white areas). Redder areas indicate the thinnest rocks beyond the boundary; bluer ones, the thickest. Circles, triangles and squares show known large sediment-hosted deposits of different metals. (Adapted from Hoggard et al., Nature Geoscience, 2020)

Geologists identify deep-earth structures that may signal hidden metal lodes

Our planet has a layered structure of silicate mantle and metallic core. The liquid outer core is located 2900 km below the surface where the pressure and temperature are extremely high, >136 gigapascal (1.36 million atmospheres) and >4000 C. The sound speed and density profiles of the deep-interior of our planet is given by seismological observations.

Precise measurement of liquid iron density under extreme conditions

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