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.
geochemistry
Posted inResearch Spotlights
What Happens to Drugs After They Leave Your Body?
It’s hard to predict with certainty how drugs break down once they enter waterways. In a new study, scientists devised a way to do just that.
Posted inNews
Mission Could Lasso Amino Acids from the Icy Plumes of Enceladus
If geysers from Saturn’s moon Enceladus contain amino acids, new research shows that a spacecraft could collect them with signatures of possible life preserved.
Posted inENGAGE, News
Martian Meteorites Offer a Tantalizing Glimpse of the Red Planet
By studying these literal chunks of Mars, scientists are learning more about the Red Planet’s deep interior and impact history.
Posted inEditors' Highlights
Machine Learning Looks Anew at Isotope Ratios in Oceanic Basalts
While past attempts to define isotopic endmembers and assign them a geodynamic significance ended in controversy, a machine-learning clustering algorithm offers a solution to this classical problem.
Posted inNews
Isótopos de criptón proporcionan nuevos indicios sobre el pasado de los planetas
Para determinar cómo los elementos cruciales para el desarrollo de la vida llegaron a la Tierra, los científicos estudian los gases nobles. Actualmente, métodos mejorados traen consigo nuevos indicios a partir del criptón, el gas noble más enigmático.
Posted inNews
Rare Meteorites Shed Light on Diamond Formation
By studying meteorites believed to be remnants of the catastrophic breakup of a dwarf planet, researchers are learning how lonsdaleite, a particularly hard type of diamond, forms in nature.
Posted inNews
What Can Zircons Tell Us About the Evolution of Plants?
The versatile mineral could contain evidence of the evolution of land plants and their effect on the sedimentary system.
Posted inEditors' Vox
Widespread “Forever Chemicals” in Subsurface Environments
Massive use of materials containing per- and polyfluoroalkyl substances in commercial and industrial sectors has led to their widespread occurrence in subsurface environments.
Posted inNews
Tiny “Pancakes” Suggest Some Asteroids May Stay Active
Analysis of a meteorite that fell in Costa Rica shows that its parent body may resemble the asteroid Bennu.