Recent Comments
Blog Roll
Links
Search
Dave's Twitter Feed
    follow me on Twitter
    Navigation
    Books we're reading
    • House of Suns
      House of Suns
      by Alastair Reynolds

      Stunningly good read, one of Reynolds best so far.  Big vision stuff and, by rights, a strong contender for next year's Hugo list.

    • Debatable Space
      Debatable Space
      by Philip Palmer

      Hmmm...  it isn't working for me at the moment.  I'll let you know if it does. [EDIT] Nope, still not working. [EDIT of the EDIT] Still slogging through, not improving... :(

    Powered by Squarespace
    « Title Sequences of SF Past | Main | 3 Strikes Rules »
    Wednesday
    26Aug2009

    Space: The Final Form of Birth Control?

    At the World Science Fiction Convention we had a discussion at one of the parties about barriers to human colonisation of space. One of the concerns I raised was about the ability of humans to have children off Earth. While we have lots of examples of humans adapting to some fairly extreme conditions on the planet, we also have evidence that such evolutionary changes took time and a lot of adaption.

    I was even concerned if it was feasible for impregnation to occur in microgravity.

    My concern, apparently, is unfounded, the research shows that fertlisation occurs reasonably easily in Mammals, the problem, it seems, is that Mammal embryos are sensitive to gravitational variation and don't divide naturally in simulated micro-gravity.

    The full article is over at Wired. Fascinating stuff and something we need to do a lot more research on.

    Original article:Citation: “Detrimental Effects of Microgravity on Mouse Preimplantation Development In Vitro.” By Sayaka Wakayama, Yumi Kawahara, Chong Li, Kazuo Yamagata, Louis Yuge, Teruhiko Wakayama. Public Library of Science ONE, August 25, 2009.

    PrintView Printer Friendly Version

    EmailEmail Article to Friend

    Reader Comments (2)

    More of a comment than a question, but it seems to me that we have a lot of missing data. We know what happens (in general) to mammals in zero gee, and we know a lot about mammals in 1 gee. We have really no idea what fractional gee does. Would, for example, 1/6 gee provide enough directionality for embryos?

    Or for that matter, would 1/6 gee provide enough gravity to avoid the bone loss seen in microgravity? We don't know.

    August 26, 2009 | Unregistered CommenterChris Gerrib

    True, and all good questions - we're going to need a lot of general research on this stuff before we start sending out colonies.

    August 26, 2009 | Registered CommenterAtomic Razor Cabal

    PostPost a New Comment

    Enter your information below to add a new comment.

    My response is on my own website »
    Author Email (optional):
    Author URL (optional):
    Post:
     
    Some HTML allowed: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <code> <em> <i> <strike> <strong>