A giant meteorite boiled the oceans 3.2 billion years ago, but provided a ‘fertilizer bomb’ for life

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. A huge space rock, estimated to be the size of four Mount Everests, slammed into Earth more than three billion years ago – and the impact could have been unexpectedly beneficial to the earliest forms … Read more