Earth’s Beginning
An Excerpt From The Canon, By Natalie Angier

…Earth’s crust had cooled down, and the swirling molten iron at its core had begun generating the magnetic fields that help deflect the searing solar wind. So shielded, the vast clouds of volcanic reflux were not peeled off into space, but instead hovered above the ground, gathering and glowering portentously, as storm clouds do…
Continue Reading