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...No protective magnetosphere... brutal temperature shifts, and more radiation than you can reasonably survive on the way to Mars. Problems we have not solved

• Aelinsaar 10y ago
  ...Or maybe we have? I see the downvotes, but no replies to explain what I missed.
• JumpCrisscross 10y ago
  > No protective magnetosphere... brutal temperature shifts Not a problem in a shielded, climate-controlled shelter, e.g. one partly underground or in a cave. > more radiation than you can reasonably survive on the way to Mars. Putting food and water between space and interplanetary astronauts is a popularly-discussed option. I think you may have been down-voted on your tone. This is an optimistic, bleeding-edge project. Unless you are an expert, it is more appropriate to ask why something isn't a problem than to prematurely declare it as unsolved or unsolvable.
  • Aelinsaar 10y ago
    I think the burden is on the person saying, "To mars, very soon!" to explain what they feel has changed, or changing, to allow that to be something other than a one-way, dead-end mission. If you want optimism for the sake of optimism, Facebook has some lovely mother's groups.
    • JumpCrisscross 10y ago
      That's an arrogant perspective. What value are you adding that anything needs to be proved to you?