Tag Archive for 'North American craton' | Sci.News

(A) the Milky Way Galaxy with superimposed spiral arms and geological events: the arm and the Solar System rotate clockwise at different rates; the ‘+’ number denotes the number of times Earth has passed through that arm; (B) model of the Oort cloud showing cometary nuclei; (C) schematic reconstruction of early Earth impact process; (D) early crustal nuclei development. Image credit: NASA / JPL-Caltech / ESO / R. Hurt / Kirkland et al., doi: 10.1130/G50513.1.

Transits through Milky Way’s Spiral Arms Helped Form Early Earth’s Continental Crust, Study Says

Aug 24, 2022 by News Staff

New research led by Curtin University geologists suggests that regions of space with dense interstellar clouds may send more high-energy comets crashing...