2022-10-05, 18:27
The Milky Way's Spiral Arms May Have Carved Earth's Continents
https://www.scientificamerican.com/artic...ontinents/
A controversial new theory suggests the Milky Way galaxy’s arms sent comets hurtling toward early Earth, where impacts built new continental crust
https://www.scientificamerican.com/artic...ontinents/