Earth’s Atmosphere Top to Bottom
The air you breathe is precious, and the farther from Earth’s surface you go, the less there is. But Earth’s atmosphere extends farther into space than you might realize, affecting the orbits of spacecraft more than 200 miles high.This infographic looks at what’s in the atmosphere, from way out there, to up where the clouds hang out, to right down here.

You should read
sT*rchi1Ð on July 22nd, 2010 at 12:12 PM
nise. very nise column.
“It is Allah Who has created seven heavens and of the earth the like thereof (i.e. seven).” [Attalaq 12]