Why the NASA approach will likely fail to send humans to Mars prior to c. 2080
The great disparity between the time required in traveling to Mars (6 to 9 months) vs. the time required to travel to the Moon (∼3 days) results in a huge difference in requirements for transporting the crew in the two cases. These differences include differences in mass of consumables, requirements for longevity and durability of ECLSS systems, radiation exposure, low-gravity exposure, and Habitat volumetric space and facilities. When the entire mission is taken into account, including transit to Mars, surface stay, and return, the differences between Mars missions and lunar missions are very significant. There are also significant differences in Δν requirements for various transits, although these can be partly mitigated by aero-assist technologies at Mars.
KeywordsChallenge Environment Aerospace Technology Huge Difference Great Disparity Lunar Mission
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