Ancient Asteroid Storm May have Aided the Emergence of Life

Planetary News: Earth (2009) By Amir Alexander May 29, 2009 Giant asteroid impact on early Earth Credit: Don Davis/NASA 3.9 billion years ago the Earth was undergoing a cataclysmic convulsion. Over a period that lasted between 20 and 200 million years, the surface of our planet was battered by a storm of impactors that beat … Continue reading Ancient Asteroid Storm May have Aided the Emergence of Life