cosmicfunnies: This is the second week of Earth awareness month! This week’s entry: Theia
cosmicfunnies: This is the second week of Earth awareness month! This week’s entry: Theia and Earthhttp://www.popsci.com/more-evidence-that-early-earth-collided-head-on-with-another-planethttp://www.universetoday.com/127139/127139/ -- source link