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Geochemistry

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Pterosaur Wing Yields First Steroid Biomarkers and Reveals New Preservation Pathway

The peer-reviewed study published Friday shows microbe-driven oxidative mineralisation can lock organic molecules into three-dimensional fossils.

Lab Experiments Recreate Mercury Magma to Show Sulfur Lowers Crystallization Temperatures

Study Ties Planetary Habitability to a Narrow Oxygen Window in Core Formation

Yellowstone Quake Swarm Briefly Rewired a Deep Aquifer’s Chemistry and Microbes

Experiments Confirm Hydrogen–Rock Reactions Can Create Large Water Stores Inside Sub-Neptunes

Single Number Predicts Stalagmite Shapes, Study Finds

Iron Carbonate, Not Phosphate, Preserved Biomolecules in Ancient Coprolites

Perseverance Finds Potential Biosignature in Jezero Mudstones, Nature Study Reports

Perseverance Sample Marks Most Convincing Candidate Biosignature on Mars, NASA Says

Simulations Point to Carbon as Trigger for Earth’s Inner-Core Formation

NASA Models Point to Long-Lived Hydrothermal Energy on Ancient Ceres

Deepest Chemosynthetic Communities Found in Kuril-Kamchatka and Aleut Trenches

New Laser Technology Could Help Detect Fossilized Microbes on Mars

Earliest Evidence of Coral-Algae Symbiosis Discovered in 385-Million-Year-Old Fossils

NASA's Perseverance Rover Uncovers Potential Signs of Ancient Life on Mars

Curiosity Rover Uncovers Pure Sulfur Crystals on Mars

Dwarf Planets Eris and Makemake May Harbor Subsurface Oceans

Scientists Uncover Critical Reaction Behind Unique Lunar Rock Formation