Geochemistry

Isotope Geochemistry Mineralogy Isotope Analysis Chemical Composition Elemental Analysis Isotopic Analysis Isotopes Chemical Analysis Meteorites Organic Chemistry

Scientists Find First Garnet in Martian Meteorite

Isotopic analyses are planned to determine whether the tiny andradite grains formed on Mars or arrived as foreign fragments.

Study Finds Earth’s Phosphorus and Nitrogen Came From the Inner Solar System

Stromatolites Found in South Korean Impact Crater Point to Post‑Impact ‘Oxygen Oases’

Mantle Gases Detected in Zambia’s Kafue Rift Point to Early-Stage Rifting

Study Finds Early Life Used Molybdenum Billions of Years Before Oxygen Rise

Earth Formed Entirely from Inner Solar System Material, Study Finds

IIT Kharagpur–PRL Pinpoint Two-Stage Origin of the Moon’s High‑Titanium Basalts

Hayabusa2 Ryugu Samples Contain All Five DNA and RNA Bases

Hayabusa2’s Ryugu Samples Contain All Five DNA/RNA Bases

Machine Learning Maps 400 Bright Slope Streaks on Mercury, Hinting at Ongoing Volatile Loss

Apollo Soil Study Finds Meteorites Supplied Only a Small Share of Earth’s Water

NASA Study of Apollo Moon Soil Finds Meteorites Supplied Only a Small Share of Earth’s Water

Helium-3 Dating Reveals Rapid Post-Impact Evolution in Ocean Plankton

Pompeii Baths Went From Foul Wells to Cleaner Aqueducts, With Lead Risks

Bennu Samples Reveal Six Sugars, Including First Extraterrestrial Glucose

Cosmic Dust Isotopes Chart 300,000 Years of Arctic Sea-Ice Change

Lab Experiments Reveal Planets Can Make Water From Hydrogen–Magma Reactions

PNAS Study Finds Rare Water-Rich Meteorite Relics in Chang'e-6 Far-Side Samples

Ancient Mantle Rocks Reveal Potassium-40 Deficit Linked to Surviving Proto‑Earth

First Detection of Heavy Water in a Planet-Forming Disk Points to Prestellar Origins