Unless you define “on earth” to be "below the Kármán line. The Earth’s atmosphere is probably to be considered part of the planet, else gas planet like Jupiter get difficult to talk about consistently. Atmospheres don’t have a proper “cutoff”, they just get thinner and thinner until they gradually become insignificant, so some cutoff is going to have to be arbitrarily defined to make the distinction useful.
Karman line could be a good limit sure, but I think the orbit still kinda makes sense to include “on the planet”.
Say for example if the apartheid baby gets his Mars colony thing going, from Earth’s perspective it wouldn’t make much difference if a person is standing on Mars surface or on the orbit - we could say that the person is on Mars.
Unless you define “on earth” to be "below the Kármán line. The Earth’s atmosphere is probably to be considered part of the planet, else gas planet like Jupiter get difficult to talk about consistently. Atmospheres don’t have a proper “cutoff”, they just get thinner and thinner until they gradually become insignificant, so some cutoff is going to have to be arbitrarily defined to make the distinction useful.
Karman line could be a good limit sure, but I think the orbit still kinda makes sense to include “on the planet”.
Say for example if the apartheid baby gets his Mars colony thing going, from Earth’s perspective it wouldn’t make much difference if a person is standing on Mars surface or on the orbit - we could say that the person is on Mars.
They would be in Mars orbit, but not planetside. “At Mars” might be a middle ground designator.
i’d say being in orbit is arguably the least on a planet can be, since an orbit is specifically continuing to miss falling onto the planet.