Where Does Space Begin? We Asked a NASA Expert

Where does space begin? Well, it depends
There's no sharp boundary that marks the end
of atmosphere and beginning of space. But no
matter where you draw the line in the sand - or
the air - Earth's atmosphere is full of all kinds
of interesting stuff. That's why scientists like
Doug Rowland are studying its many layers:
https://climate.nasa.gov/news/2919/ea.
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Producers: Scott Bednar, Jessica Wilde
Editor: Dan Salazar
Credit: NASA