Scientists finally have a decent guess as to why Earth exists

Earth is a pretty nifty place. I mean, I've spent my entire life here and I'm guessing you have, too, and there's plenty to see and do, but why is it here at all? For a long time, researchers have tried to answer that question with varying degrees of success, but a new theory of how Earth formed is gaining traction, and it might be the explanation we've been looking for.The most widely-accepted explanation for how Earth and most terrestrial plants formed hinges on materials orbiting a newborn st