An Ocean Is Hidden Inside Earth, And We'll Take You There To See It (VIDEO)

November 25, 2014 1:24 PM

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JACQUELINE HOWARD: Hey everyone. Jacqueline Howard here. Ever wonder what it’s like inside our planet? Come with me on a subterranean tour all the way from the rocky crust where we live through the layer known as the mantle to the wild half-solid/half-liquid core of the Earth. We’ll also be stopping by a newly discovered underground ocean. Let’s go!

The mantle is also where molten rock known as magma can form before it flows upward during volcanic eruptions--at which point the magma becomes lava. This was pretty much the picture scientists had of the mantle until earlier this year--when a vast hidden ocean of water was discovered some 400 miles...

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