A principal component analysis of speculative models can more confidently predict the presence of a planetary object’s subsurface ocean than previous techniques.
magnetic fields & magnetism
Posted inResearch Spotlights
Exploration and Evaluation of Deep-Sea Mining Sites
Two studies chart new territory for the fledgling deep-sea mining industry through advances in the identification and analysis of seafloor hydrothermal mounds.
Posted inResearch Spotlights
Converting Auroral Observations into 3D Structures
Using 1D and 2D data sources as model constraints yields fine-scale insights into real-world aurorae.
Posted inNews
Oldest Pole Reversal Shows Early Earth Was Well Suited for Life
Australian rocks 3.25 billion years old preserved the oldest signs of Earth’s stable magnetic field and quickly moving crust, critical elements of life’s evolution.
Posted inNews
Can NASA’s Gravity Satellites Detect Motions in Earth’s Core?
Measurements of our planet’s gravitational field could expose processes in the fluid outer core—if scientists can decipher the signals.
Posted inENGAGE, News
Tracking Pollution in the Breeze, with Trees
New research outlines how pine needles offer a simple, low-cost means of assessing particulate matter pollution.
Posted inEditors' Highlights
An Unstable Magnetic Field in Central Asia 2500-1500 Years Ago
The geomagnetic field intensity – poorly described – varies spatially and temporally on centennial time scales. A recent study fills an important gap in Central Asia and discusses global implications.
Posted inEditors' Highlights
American Legacy Paleosecular Variation Data Unlocked
The geomagnetic field changes regionally on centennial time scales. A recent study unlocks three historical archives from the “Four Corners” region (southwest USA) reconciling previous discrepancies.
Posted inNews
Diamonds Are a Paleomagnetist’s Best Friend
Typical paleomagnetic measurements average a sample’s signal. The quantum diamond microscope helps scientists make micrometer-scale maps of magnetism, showing where a sample locked in its magnetic signatures.
Posted inENGAGE, News
Ancient Flint Tools Reveal Earth’s Changing Magnetic Field
Stone tools may provide data on paleomagnetism that are out of reach for other markers, such as prehistoric pottery.