Within LiveScience, OurAmazingPlanet explores the wonder and beauty of Earth through news, features and images. Our team of experienced science reporters and editors explain the latest discoveries, interviewing expert sources and offering up deep and broad analysis of what's out there and explaining how the world works.
Rocks from the deep past, some 3.5 billion years old, were deposited on a deep, cold ocean floor, not in a scalding sea. That finding suggests the planet was in a Goldilocks state ever since life appeared.
Earth's inner core is partly light elements such as sulfur, hydrogen and silicon, a new study finds. The research can reveal details of the planet's violent formation as well as the magma ocean that emerged afterward.