Diamond holds up at pressures more extreme than those in Earth’s core


Diamond stands up to a squeeze. Surprisingly, the material’s structure persists even when compressed to 2 trillion pascals, more than five times the pressure in Earth’s core, scientists report January 27 in Nature. The study suggests that diamond is metastable at high pressures: It retains its structure despite the fact that other, more stable structures […]

An Ice Core from the Roof of the World

There isn’t much room for error 8,000 meters above sea level, and everyone on the expedition knew it. Mount Everest is notoriously challenging to climb, but conducting research on the iconic mountain is an even taller task. It was clear and sunny, but the thin air was bitterly cold. The team relied on […]