Science ❯ Geochemistry

Chemical Composition

Rock Analysis Natural Glass Isotope Analysis Asteroids

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

High‑precision measurements tie a rare isotopic signal to material that predates the Moon‑forming impact.

Australian 'Ananguites' Point to a Giant 11-Million-Year-Old Impact With No Known Crater