yes all these answers by kevin & john & even karolis are true
but the original allegedly somewhat ot question was only asking
for the legal upper limit of a nations legal airspace in air or
space
& the area of concern was even restated or refined as
what is the minimum legal altitude of legal overflight without the
legal need for legal permission
if i am not disturbing it by clarifying it in this way
or in other words what is the actual boundary point
aha & so not offtopic at all
to which i would like to repeat or recap
there simply is no boundary point in this case
for no matter how high you overfly
you are still technically crossing an unlimited territorial airspace
& it may seem the same as the more familiar de jure rite of
innocent passage across territorial sea
but the point is
unlike innocent passage at sea
such overflight is only de facto innocent passage
& it is not actually protected anyhow anywhere
so far as i know
all the way to the end of the universe
& even at the end of the universe
there may or may not be some outer limit by cosmic law
especially if the universe is still growing
as i surmise
--- In
BoundaryPoint@yahoogroups.com, Kevin Meynell
<kevin@m...> wrote:
>
> >International law states that there is no definitive point where
the
> >atmosphere ends and space begins.
>
> The problem is that the atmosphere isn't uniform in its
depth/thickness
> around the Earth. It's thicker at the equator than at the poles. In
> addition, there are a few molecules of air even at very high
altitudes -
> what concentration does this have to be?
>
> >The major space powers accept the following definition:
Space begins at "
> >the lowest perigee attained by orbiting space vehicles..."
>
> Again, this definition is a bit vague as a trajectory that allows a
vehicle
> to orbit the earth once, is going to be different to one that
allows a
> vehicle to orbit indefinitely (thanks to atmospheric friction).
Presumably
> the trajectory would also be different for equatorial and polar
orbits due
> to atmospheric and gravity differentials.
>
> >Columbia, Equador, Brazil, People's Republic of the Congo,
Zaire, Kenya,
> >Uganda, and Indonesia also stated that they would defend
such areas.
>
> Good luck!
>
> Regards,
>
> Kevin Meynell