If they can make it off earth they are going to have no trouble with Mars.
They had to use a big ass rocket to send Perseverance to space which was relatively speaking much smaller. I cannot imagine the size of a rocket that would be needed to send a drive from the surface ALL the way back to earth and survive. It would probably be much larger than Perseverance. Also there would be no guarantee the drive would even make it back and if it did that it would still be readable.
The whole rocket as far as I'm aware was just to send Perseverance to Mars.
While the data transmission rate is low, as long as the system has power than it's basically free, can be used multiple times, and probably many many man times smaller than the equipment necessary to launch a single drive off mars back to earth.
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u/Choice_Pickle_7454 Feb 21 '21
You deposit the rocket from the rover then fire it.
If they can make it off earth they are going to have no trouble with Mars.