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Yasuhito Sekine

Associate Editor, JGR: Planets

A photo image of Mars Simulation Chamber
Posted inEditors' Highlights

Salty Soil May Release Methane on Mars

by Yasuhito Sekine 5 April 20244 April 2024

Through roving and drilling, Mars Curiosity Rover may be breaking up the ground’s salty, hardened soils that seal methane, possibly causing a temporal, local methane spike.

Schematic of how chlorate could oxidize reducing iron to iron oxides in various aqueous environments on Mars
Posted inEditors' Highlights

Why Is the Red Planet Red? Chlorate May Oxidize Mars’ Surface

by Yasuhito Sekine 6 December 201922 December 2021

Laboratory experiments and geochemical model suggest that chlorate is very effective to oxidize reducing iron to reddish iron oxides on Mars when liquid water was present on the surface.

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

Early Apes Evolved in Tropical Forests Disturbed by Fires and Volcanoes

12 June 202511 June 2025
Editors' Highlights

Coverage Factors Affect Urban CO2 Monitoring from Space

12 June 202512 June 2025
Editors' Vox

Inside Volcanic Clouds: Where Tephra Goes and Why It Matters

16 June 202512 June 2025
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