Mysterious plague is wiping out sea urchins across the globe, scientists say

Sign up for a full roundup of all the best opinions of the week in our Voices Dispatches email Sign up for our free weekly Voices newsletter A mysterious plague of sea urchins has spread across the world, driving the creature to near extinction in some areas and threatening delicate coral reef ecosystems, a new … Read more

A Relic of Ancient Oceans and Planetary Collisions – Scientists Shed New Light on Earth’s Mysterious D” Layer

SciTechDaily

One study suggests that Earth’s Dā€ layer, near the core-mantle boundary, was formed by a magma ocean created by a massive impact. The iron-magnesium peroxide, formed by the water in this ocean, explains the unique composition and heterogeneity of the D layer.” New research suggests that the mysterious D’ layer at Earth’s core-mantle boundary may … Read more