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Planetary Geology

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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.

Lunar Meteorite Reveals a 3.486‑Billion‑Year‑Old, Extremely High‑Temperature Impact

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

Sahara Meteorite Points to Moon‑Size Lost Protoplanet

Study Finds Shallow North-to-South Impact Shaped the Moon’s Largest Basin

Lab Experiments Recreate Mercury Magma to Show Sulfur Lowers Crystallization Temperatures

Perseverance Finds Record Nickel in Mars Bedrock That Bolsters Case for Ancient Habitability

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

Oxford Study Finds Moon’s Magnetic Field Was Mostly Weak Through Its History

New Global Map Reveals Young Lunar Fault Ridges, Expanding Moonquake Risk Zones

Young Mars Volcanoes Show Long-Lived, Evolving Magma Systems

New Experiments Suggest Earth’s Core Holds Nine to 45 Oceans’ Worth of Hydrogen

First Subsurface Lava Tube Detected on Venus in Reprocessed Magellan Radar

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

High-Resolution Mars Mapping Points to Arctic-Sized Ocean 3 Billion Years Ago

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

New Mars Express Images Reveal Vast Wind-Carved Ridges at Eumenides Dorsum

Chang'e-6 Samples Confirm Hematite and Maghemite on the Moon

MIT-Led Team Finds Proto-Earth Signature Preserved in Deep Mantle After Moon-Forming Impact