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Questions regarding the takeoff or the liftoff phase of the flight of a rocket and the set of activities required for preparation of the launch vehicle leading to it.

11 votes

What is the largest hurdle of the mission to Mars?

What is the largest hurdle of [a manned] mission to Mars? Radiation The daily dosage received by a human on earth is 0.00001 sieverts. The shortest round-trip to Mars involves a 0.66 sievert do …
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