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How high is the sky?


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The sky is infinitely high. In reality, the sky starts where the surface ends. If you are not on the ground you are in the sky!

Answered by James M. -

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31 km - the 99% line. 99% of the atmosphere is below 31 km above the surface of the Earth. ChaCha on!

Answered by Tammy N. -

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Technically, the sky starts as soon as the ground ends. Also, there is no end to the sky. Thanks for using ChaCha!

Answered by Rachel M. -

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The exosphere, which is the outermost portion of the atmosphere, or sky, is about 300-600 miles above the surface of the planet.

Answered by Matthew P. -

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Troposphere is ground to 6 miles and the stratosphere is 6 miles-50 miles. How far can you see?

Answered by Dawn P. -

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The earth's Exosphere is 300-600 miles high. Thanks for using ChaCha!

Answered by Cindy H. -

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At 5.5km there is what they call the habitation limit. That is the beginning of what we would know as the sky. ChaCha!

Answered by Crystal S. -

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The sky starts as soon as the ground ends! As you go higher, the atmosphere just gets less dense gradually and just fades away.

Answered by Brenda C. -

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Very low and very high! There is also no distinct end to the sky. Thanks for using Chacha.

Answered by Cassie S. -

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