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A comment on SpaceX Grasshopper Flies High. Parent comment
There's about 90% as much gravity at the altitude of the ISS.
It's the atmosphere (and associated gravity drag), not the 1/r^2 scaling, that does it.
There's about 90% as much gravity at the altitude of the ISS.
It's the atmosphere (and associated gravity drag), not the 1/r^2 scaling, that does it.