Scientists say Earth is 4.5 billion years old. How do we even imagine a number that huge? Well, a physicist came up with the idea of using a football field as a way to understand the epic amount of time.
Even in a giant stadium, every inch represents an incredible 1.3 million years. Which means that humans only show up about an eighth-of-an-inch from the end zone. Check it out in the cool video below.
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