What on Earth is going up here? I am little prepared for this. As I descend down towards 90 kms temperatures are still plummeting. What gives? Hah! Yes. There are fewer really high-energy waves here. Of course. Many of them were changed into low-energy waves when they hit the oxygen molecules above me. Molecules aren’t heated the same here. Whooops. More changes yet again!

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Chapter Six - Land of the Lost Trace Gases - Discovering the Trace Gases.

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