There's a a recent study or two which claim the earth is surrounded by a large hydrogen cloud (a geocrona) which extends out to about twice the radius of the moon's orbit.
So if you count that as part of the earth's atmosphere,
https://bigthink.com
There's a a recent study or two which claim the earth is
surrounded by a large hydrogen cloud (a geocrona) which extends
out to about twice the radius of the moon's orbit.
Space is not a perfect vacuum. It contains a few atoms per m^3.
That does not mean that they belong to Earth's atmosphere, defined by
the atoms and molecules that are retained by Earth's gravity.
I'd take what's on that site with big scepticism. The article you linked to is full of errors and pseudoscience. I can only assume it goes
This doesn't preclude the moon *and* its atmosphere from being entirely encompassed by the earth's atmosphere.
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