Amúgymeg:
"There is no international agreement on the vertical extent of sovereign airspace (the boundary between outer space— which is not subject to national jurisdiction— and national airspace), with suggestions ranging from about 30 km (the extent of the highest aircraft and balloons) to about 160 km (the lowest extent of short-term stable orbits). The Fédération Aéronautique Internationale has established the Kármán line, at an altitude of 100 km (62.1 miles), as the boundary between the Earth's atmosphere and the outer space, while the United States considers anyone who has flown above 50 miles (80 km) to be an astronaut; indeed descending space shuttles have flown closer than 80 km over other nations, such as Canada, without requesting permission first.[1] Nonetheless both the Kármán line and the US definition are merely working benchmarks, without any real legal authority over matters of national sovereignty."
(wikibő van)
