Part of Earth's crust fell from the sky, new research suggests


Scientists at Montreal's McGill University have added to the common theory about how the Earth's crust was created. Don Baker and Kassandra Sofonio looked into a theory that not all of the Earth's crust was formed from the inside out, but that some of the crust fell to Earth from the atmosphere, Baker told CBC News in an interview. He described it as "raining marbles," or silicate rain, formed by the high temperatures on the Earth's surface.

Read more: CBC News