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Sonia Tikoo

Associate Editor, JGR: Planets

Photo of Mars' surface.
Posted inEditors' Highlights

Explaining Mars’ Mysteriously Magnetic Crust

by Sonia Tikoo 13 March 202513 March 2025

Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records of the planet’s now-extinct magnetic field.

Photos of Martian meteorite NWA 7034.
Posted inEditors' Highlights

Hand Magnets Destroy the Magnetic Record of Meteorites

by Laurent G. J. Montési and Sonia Tikoo 30 May 202324 May 2023

Meteorite collectors often use strong magnets for classification, but this approach destroys crucial evidence of processes active in the early solar system.

A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Magnetic “Switchback” Detected near Earth for First Time

8 October 20258 October 2025
Editors' Highlights

New Evidence for a Wobbly Venus?

29 September 202525 September 2025
Editors' Vox

All Publish, No Perish: Three Months on the Other Side of Publishing

29 September 202525 September 2025
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