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    • CommentAuthorAsterix
    • CommentTimeDec 5th 2021
     
    Angus, why is "Here" underlined and highlighted in your post--it's not a URL tag.
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      CommentAuthorAngus
    • CommentTimeDec 5th 2021
     
    Ooops. Typed "-" instead of "="
    • CommentAuthorAsterix
    • CommentTimeDec 6th 2021 edited
     
    Since mass is a key component of this, why not vaporize liquid mercury? Much more massive than iodine. Boils at about twice the temperature, but that shouldn't be an issue.

    Ah, ferget it--Hg is only slightly more dense than I, and not worth the extra heat.
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      CommentAuthorAngus
    • CommentTimeDec 6th 2021 edited
     
    I imagine the vapour pressure is too low. And there must be an advantage to sublimation rather than dealing with a liquid. Would you need an ullage motor to get your ion thruster going?
  1.  
    A eutectic mixture of hafnium, selenium, dysprosium and praseodymium might be even better
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      CommentAuthorAngus
    • CommentTimeDec 6th 2021
     
    And ultra cheap as well!
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      CommentAuthorTrim
    • CommentTimeDec 7th 2021
     
    Is the origin of Oumuamua solved? Harvard astrophysicists say, no - YouTube

    https://m.youtube.com/watch?v=Oi0i9iJP4Zw
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      CommentAuthorAngus
    • CommentTimeDec 7th 2021
     
    Well, that unsettles it, then.
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      CommentAuthorTrim
    • CommentTimeDec 7th 2021
     
    Should have reacted earlier and sent a probe after it.

    Dentists have enough.
  2.  
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      CommentAuthorTrim
    • CommentTimeDec 26th 2021
     
    Lets hope all goes well.

    NASA’s DART Spacecraft Opens Its “Eye” and Returns First Images From Space.

    https://scitechdaily.com/nasas-dart-spacecraft-opens-its-eye-and-returns-first-images-from-space/
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      CommentAuthorTrim
    • CommentTimeDec 27th 2021
     
    How NASA’s Psyche Mission Will Explore an Unknown World We Can Barely Pinpoint From Earth.

    https://scitechdaily.com/how-nasas-psyche-mission-will-explore-an-unknown-world-we-can-barely-pinpoint-from-earth/


    Should be worth some dosh.
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      CommentAuthorTrim
    • CommentTimeDec 28th 2021
     
    The Discovery No-one Expected Found in Stardust - YouTube

    https://m.youtube.com/watch?v=q_QXafM3Sk0