Earth has officially completed half its lifespan

If current scientific models are anything to go by, Earth, now 4.5 billion years old and halfway through its total lifespan, ...
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Earth is missing a billion years of history. We finally know why

When geologist John Wesley Powell explored the Grand Canyon in 1869, he noticed a glaring omission in the rocks. A layer of rock just 520 million years old sat directly on top of ancient rock dating ...
IFLScience

The "Great Unconformity" And Earth's Missing Billion Years May Have A New Explanation

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...
Popular Mechanics

Earth’s Geological Record Is Missing 1 Billion Years. Scientists May Have Just Found Where They Went.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: In geological layers around the ...