While the cost of getting to Mars is enormous for the size and scope for 4, 6, 8 or 10 member crews and supplies,etc. Why not a single person launched at higher speed whose mission is to land for a period of time and then return. If the craft can be sufficiently small, the speeds can be much higher and the decent/ascent can be possible with a small craft done quickly. Is this possible without going 9 months to two years waiting for the Earth/Mars sync?
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