Earth’s 200 Million Year Growth Spurt
Around 3 billion years ago, Earth’s crust ballooned during a massive growth spurt, geoscientists have found. At that time, just 1.5 billion years after Earth formed, the mantle — the … Read more
core
SCIENCE: The Paradox of Earth’s Inner Core
Earth’s Inner Core Shouldn’t Technically Exist Earth’s solid inner core formed about one billion years ago. Researchers are getting closer to figuring out how it happened. One day, about a … Read more