Jet stream.
A jet-stream is a current of air high above the earth. They move eastward at altitudes of about 5 to 9-miles.
A jet stream.
Satellite Images
it is called gravity
This is known as the ozone layer.
Jet stream
Jet streams
20 miles
The Hubble space telescope orbits between 562 and 567 km above the Earth.
In cca 13 kilometers above Earth
15km
When air high above the earth' surface is cooled below the dew point it is likely to form?