Join Dave, Zach, and Shane, the hosts of Scientifically Speaking, as they talk about Earth: -How did the atmosphere form and why is it important? -What the heck is the magnetosphere? -How did the moon get here? -What are the earth's stats? A/S/L https://archive.org/download/Show8TheEarth3142015/Show%208%20-%20The%20Earth%20-%203-14-2015.mp3