Science ❯ Geology

Geochemistry

Isotopes Isotope Analysis Carbon Cycle Meteorite Composition KREEP Redox Reactions Research Awards and Honors Mars Redox Chemistry

Fossils Suggest First Fully Marine Amphibian Lived in Triassic Seas

Seawater chemistry in the bones and heavy armor on the skeletons point to lifelong ocean living and could change ideas about amphibian limits.

At Least 4.1‑Billion‑Year‑Old Martian Rock Reveals Early Water and Complex Mantle

Study Proposes Two Independent Origins of Free‑Living Cells

Lunar Meteorite Preserves Evidence of a 3.5-Billion-Year-Old Giant Moon Impact

Antarctic Ice Points to Solar System Crossing a Supernova‑Tainted Interstellar Cloud

Antarctic Ice Links Supernova Dust to the Solar System’s Passage Through a Nearby Cloud

Far-Side Moon Samples Link South Pole–Aitken Impact to Lunar Asymmetry

PNAS Study Maps Pompeii’s Water Shift From Wells to Aqueduct, Revealing Hygiene Trade‑Offs

Record-Deep Arctic Gas Hydrate Seeps Teeming With Life Confirmed at Molloy Ridge

Science Study Points to Inner‑Solar‑System Origin for Moon‑Forming Impactor Theia

Rare C31 Chemical Fossils Strengthen Case That Sponges Were Among Earth’s First Animals

Geochemical Study Reveals 13-Kilometer Toolstone Transport by Hominids

NASA's InSight Data Offers New Clues to Mars' Mysterious Dichotomy

Former French Education Minister Claude Allègre Dies at 87

Chang'e-6 Mission Reveals Prolonged Volcanic Activity on Moon's Far Side