Chemical and mineralogical evidence of fluid flow—potentially conducive to microscopic life—was revealed in rock cores extracted from the crater’s “peak ring.”
magnetic fields & magnetism
Is Space Weather Worse by the Sea?
A new simulation of space-weather driven geoelectric fields at the land/sea conductivity boundary shows how these fields are magnified by both coastal effects and inhomogeneous land conductivity.
Electron Density near Enceladus Shows Orbital Variation
The electron density peaks well after the activity of the moon’s distinctive south polar ice plume reaches its maximum, but the cause of the lag remains puzzling.
New Energetic Neutral Atom Emissions from Jupiter, Io, and Europa
The first Jovian off-equator Energetic Neutral Atom viewings reveal distinct emissions from Jupiter and the orbits of Io and Europa: Energetic particle injections surprisingly occur inside Io’s orbit.
Internal Compass Guides Salmon’s Incredible Journey
New study finds evidence that magnetite particles play a role in fish navigation.
Globally Variable Water Content in the Mantle Transition Zone
Using electromagnetic waves originating in the ionosphere and magnetosphere, conductivity profiles reaching the deep upper mantle show surprising variability in water content.
The Future of Big Data May Lie in Tiny Magnets
New research in the field of neuromorphic computing uses tiny magnets and their magnetic fields to optimize computing algorithms.
A Longer-Lived Magnetic Field for Mars
New research indicates Mars’s dynamo may have been active for millions of years longer than previously thought.
Two Moons and a Magnetosphere
Decades of research have illuminated how Io and Europa shape—and are shaped by—Jupiter’s giant magnetosphere.
Chinese Swamp Core Reveals 47,000 Years of Monsoon History
Magnetic analysis of mineral composition supports the importance of tropical climate processes in shaping long-term monsoon patterns.
