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The Age of the Earth

The Age of the Earth

Description:

The age of planet Earth, according to scientists, is about 4.6 billion years. How far would this be if 1 mm = 1 year?

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Tutorial

How Old is Our Earth?

Dr. Michio Kaku illustrates the age of the earth and the appearance of modern man using distance. Do you know how many miles you need to travel to go back 4.6 billion years?

Source: from the series "Time: Earth TIme"