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How would Mars help? Mars, like Earth, is on a tight (1.6 AU) gravitational leash of the Sun. When the Sun dives into one of the galactic arms, so do Mars and E
by avz 9y ago
How would Mars help? Mars, like Earth, is on a tight (1.6 AU) gravitational leash of the Sun. When the Sun dives into one of the galactic arms, so do Mars and Earth.
That said, interplanetary travel is probably something we need to get good at before we try the interstellar kind, so in a way, Mars settlement brings us a tiny bit closer to galactic safety.
- yourapostasy 9y agoIf I'm reading that paper correctly, then we need more than interstellar capability, we need near-intergalactic capabilities. We would have to be solidly past a Kardashev Type II and almost attaining a Type III classification, to either move our own solar system, or establish habitats in safer galactic zones outside the arms (like outside the galactic poles or positioned above the arms). Perhaps these transitions is the Fermi Paradox's Great Filter: might it be exceedingly difficult for a civilization to hit the Kardashev Type II-III level and implement the necessary avoidance/mitigation sufficiently fast enough?