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A Moment of Science

Posts tagged Earth’s atmosphere

April 21, 2014

 

An astronaut floats in a space suit.

Going Up

On this edition of A Moment Of Science, we check out some of the atmosphere's many layers.

March 7, 2014

 

Trilobite fossil

A Change In The Air

Most of us take our oxygen-rich atmosphere for granted. Once upon a time, though, Earth's air was very different.

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