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Do not attempt to compete with Pinboard. http://pinboard.in  maciej@ceglowski.com +1 415 610 0231

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    Pinboard‏ @Pinboard Oct 17

    Space nerds, has SpaceX talked publicly at all about the en-route obstacles to a Mars mission (radiation, deconditioning, closed-loop life support) and how it plans to address them? I can find stuff about launch and landing but not the middle part that is the actual dealbreaker.

    4:07 PM - 17 Oct 2021
    • 6 Retweets
    • 75 Likes
    • Dedicating Ruckus Ted McCarthy David Rubin Brad Neuberg 🎃Spooky🦇Janitor🎃 Vaxxed Threefold Blargus Hector Velazquez microtherion Allways
    13 replies 6 retweets 75 likes
      1. Pinboard‏ @Pinboard Oct 17

        The big gating problems in space flight to Mars are almost tailor-made to stimulate Elon Musk's boredom centers—bone loss, kidney stones, degenerating eyesight, figuring out how to reliably grow a salad. The exact kind of old man problems he doesn't want to think about on Earth.

        8 replies 18 retweets 106 likes
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      2. Jeremy H. Brown‏ @jhbrown94 Oct 17
        Replying to @Pinboard

        Musk is gonna put the Tesla full self driving team to work on all that just as soon as they are done with FSD.

        1 reply 0 retweets 12 likes
      3. NFT sale w/ free planet burning gift‏ @groby Oct 17
        Replying to @jhbrown94 @Pinboard

        Plus, for a lot of the life support stuff, Musk can recycle his brilliant submersible design from Thailand.

        1 reply 0 retweets 7 likes
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      1. Jay Rishel (AKA GREEN LEOPARD)‏ @jrishel Oct 17
        Replying to @Pinboard

        No. I get the feeling he's hoping someone else (NASA) would fund a mission once the rocket is capable to solve those problems.

        0 replies 0 retweets 2 likes
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      2. Richard Norman‏ @duckbytheoboe Oct 17
        Replying to @Pinboard

        I’d love to see them do a trial run. Set up a starship-sized base in Antarctica, weld the doors shut and come back in a couple of years.

        2 replies 0 retweets 2 likes
      3. Pinboard‏ @Pinboard Oct 17
        Replying to @duckbytheoboe

        This has been kind of tried. The problem is the real problem issues are caused by a combination of high radiation and microgravity, so can't be tested on Earth.

        1 reply 0 retweets 4 likes
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      2. Paul Klinger‏ @Almoturg Oct 17
        Replying to @Pinboard

        AFAIK radiation isn't really an issue (small hardened shelter for solar storms + accepting some increase in cancer risk over decades), life support is non-trivial, but there's the ISS experience and initially it'll be a few people on a vehicle sized for 100, so lots of margin.

        1 reply 0 retweets 5 likes
      3. Pinboard‏ @Pinboard Oct 17
        Replying to @Almoturg

        Radiation is in fact a very serious issue, since we know little of the effects of long-term exposure to cosmic rays outside the magnetosphere. It's a direct risk but also indirectly compounds the bone loss and vision problems.

        3 replies 0 retweets 6 likes
      4. Show replies
      1. @cg‏ @cg Oct 17
        Replying to @Pinboard

        Bunch of issues with a colony too. Big one for me is, the ethics of having babies in low gravity environments. Can fetuses properly develop much below 1g?

        1 reply 0 retweets 0 likes
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      1. Imitation Sagan Meat‏ @fakecarlsagan Oct 17
        Replying to @Pinboard

        They're largely following The Case for Mars.

        0 replies 0 retweets 3 likes
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