Here's an image of the Earth viewed from 100,000 feet, taken in-flight during the October 2017 flight of the Primordial Inflation Polarization  Explorer (PIPER) as it flew above eastern New Mexico.  PIPER is a balloon 
<p>payload, flying high enough that you can see how thin the Earth's protective 
atmospheric layer really is.
</p><p>Submitted by:  Al Kugut
</p>
Credit: NASA Goddard/ Luke Lowe.
NASA Goddard Space Flight Center
CC BY 2.0
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