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Movement of the solar system through the Milky Way’s galactic spiral arms helped form Earth’s first continents

Boulder, Colo., USA: A new study of zircon crystals from two of Earth’s oldest continents indicates that the formation of Earth’s continental crust goes through cycles, with periods of increased crust ...
SpaceRef

Movement Of The Solar System Through The Milky Way’s Galactic Spiral Arms Helped Form Earth’s First Continents

Spiral Galaxy from Kirkland et al. CREDIT Chris Kirkland and colleagues. A new study of zircon crystals from two of Earth’s oldest continents indicates that the formation of Earth’s continental crust ...