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A comment on How We Knew Space Was a Vacuum. Parent comment

Re:How We Knew Space Was a Vacuum by numpad0 on Sunday March 12, 2023 @11:32AM (#35121260)
Can’t we just fly a U-2 all the way up and out of Earth SOI, then drift towards Mars in that situation? Do we still need to establish an orbit?
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Re:How We Knew Space Was a Vacuum by Jeff_Brown on Sunday March 12, 2023 @12:42PM (#35122379)
If the air had no currents, the steady state would be motionlessness except gravity effects. If it had currents, the steady state would be to follow them.

Of course those gravity effects would also apply to the air, which makes the scenario inconsistent. I'd be interested to see a formulation of the laws of physics that actually makes a substantial interplanetary atmosphere possible.

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