Arizona Rock Offers Clues to the Chaotic Earth of 200 Million Years Ago

Arizona Rock Offers Clues to the Chaotic Earth of 200 Million...

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

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