Manganese oxides are thought to be a signature of atmospheric oxygen. But on the Red Planet, recent results suggest they might be more of a red herring.
experiments
Posted inNews
Testing the Resilience of the Amazon
A mega-experiment in Brazil will evaluate how tropical rain forests absorb carbon as emissions increase.
Posted inNews
Warmer Winters Keep Crops Sleepy into Spring, Hurting Yield
Annual crops go dormant during winter. Frosty temperatures cue them to wake up—but the warmer winters brought on by climate change scramble the cold signal, hurting yield.
Posted inEditors' Highlights
New Results Deepen the Mystery of Earth’s Early Magnetic Field
How was Earth’s early magnetic field produced? New experimental results and modeling show that the energy source could not have come from exsolution of lithophile elements from the core.
Posted inAGU News
A Dive into the Deep Earth
In July, Eos looks at the incredible capabilities scientists have developed to recreate the enormous pressures and temperatures that exist far below the planet’s surface.
Posted inFeatures
Earth’s Core Is in the Hot Seat
How old is Earth’s inner core? High-pressure and high-temperature experiments suggest that our planet’s inner furnace may be much younger than expected.
Posted inFeatures
Reflecting on a Half Century of Mineral and Rock Physics at AGU
Research fields focused on the physical properties of Earth materials emerged in the 20th century and have been making major contributions within geoscience ever since.
Posted inNews
The Long-Lasting Legacy of Deep-Sea Mining
New research reveals a deep-sea mining experiment that took place 26 years ago still has significant and persistent impacts on benthic life.
Posted inEditors' Highlights
Ocean Gyres Observed to Move Poleward
Basin-wide ocean gyres have been observed to be slowly migrating toward the poles and, although natural variations contribute, climate simulations suggest the shift is in response to global warming.
Posted inNews
Wanted for Grand Theft Galaxy: The Milky Way
Several dwarf galaxies orbiting the Milky Way were likely stolen from the Large Magellanic Cloud.