Life on Earth may have been hoped out by a collision with a vast asteroid early in its history, according to researchers.
Some 3.26 billion years ago, when such impacts were more regular than they are now, our planet crashed into a meteorite the sizer of four Mount Everests, up to 200 times larger than the one that wiped out the dinosaurs. But it could have proven useful in helping lead to the life that surrounds us today, researchers believe.
