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Earth’s core

Map from the study.
Posted inEditors' Highlights

300 Million Years of Polar Wander: Slowly but Surely

by Thorsten W. Becker 16 April 202516 April 2025

A reanalysis of paleomagnetic poles provides tighter bounds on the style and rate of motions of our whole planet with respect to its rotation axis.

Diagram of various mantle plume behaviors.
Posted inEditors' Highlights

Modeling Mantle Dynamics as the Earth Slowly Cools

by Paul Asimow 19 February 202511 February 2025

An update of the convection code ASPECT enables full coupling of plume dynamics with buoyancy effects of transition zone phase relations, showing how early layering gave way to whole-mantle plumes.

A 13th century artist’s depiction of an eclipse
Posted inResearch Spotlights

Core Movements Could Be Causing Tiny Shifts in Earth’s Spin Speed

Sarah Derouin, Science Writer by Sarah Derouin 9 December 20249 December 2024

Researchers use ancient eclipse data and new machine learning techniques to understand what processes changed the length of Earth’s days over the past 3,000 years.

Diagram from the paper.
Posted inEditors' Highlights

Crustal Melts at the Core-Mantle Boundary

by Thorsten Becker 13 August 202412 August 2024

Seismic waves get sent in all directions for deep mantle anomalies, and a new analysis shows where those scatters lie and what properties they have.

Photo of scientific equipment in the field.
Posted inEditors' Vox

Seismology Helps Us Understand How Material Flows in Earth’s Deepest Mantle

by Jonathan Wolf 1 July 20241 July 2024

Recent progress in the analysis of seismic waves enables us to determine where, and sometimes how, the base of the mantle deforms.

An illustration depicts our solar system, with the Sun at the center and other planets orbiting the Sun.
Posted inNews

Tales and Textiles Can Communicate the Science of Planets

by Grace van Deelen 17 January 202417 January 2024

Artists are working with a scientist and a writer to boost public understanding of the science of planetary interiors.

Illustration of the Earth's internal structure.
Posted inEditors' Vox

Digging Deep into Interactions Between the Core and Mantle

by Takashi Nakagawa, Taku Tsuchiya, Madhusoodhan Satish-Kumar and George Helffrich 24 July 20234 August 2023

A new book presents major advances in our understanding of core-mantle interaction and co-evolution, and showcases technological developments improving our insights into deep Earth processes.

Una ilustración mostrando a la Tierra en el espacio con una sección que deja ver sus capas internas en colores rojos y naranjas brillantes.
Posted inResearch Spotlights

El hierro está en el centro de este debate de las ciencias de la Tierra

Aaron Sidder, freelance science writer by Aaron Sidder 6 April 20236 April 2023

Un nuevo estudio investiga el estado del hierro en el interior del planeta. Los hallazgos tienen repercusiones para comprender la estructura del núcleo interno.

An illustration showing a cross section of Earth
Posted inResearch Spotlights

Iron Is at the Core of This Earth Science Debate

Aaron Sidder, freelance science writer by Aaron Sidder 10 March 20236 April 2023

A new study investigates iron’s form at the planet’s interior. The findings have repercussions for understanding the inner core’s structure.

Photo of a rock outcrop
Posted inEditors' Vox

The Seven-Ages of Earth as Seen Through the Continental Lens

by Peter A. Cawood and Priyadarshi Chowdhury 24 February 202320 June 2024

The 4.5-billion-year record contained in Earth’s continental crust reveals a seven-phase evolution, from an initial magma ocean to the present-day environment in which we live.

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