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  1. 19388

    I can think of a place other than the moon where NASA could develop a closed life-support system for staging rehearsals of manned Mars exploration. Why not Earth? Advantages would include a protective atmosphere, a day length closer to the Martian sol, bone-and-muscle-friendly gravity, and easy access to mechanical and medical resources. The cost would […]

    By Science News
  2. Planetary Science

    A New Flight Plan

    President Bush recently unveiled an ambitious plan for a manned mission to Mars, using the moon as a testing area and stepping-stone, but for many planetary scientists the moon is a desirable destination in and of itself.

    By Ron Cowen

  3. 19387

    Your article quotes a pediatrician as saying, “we’re moving to selection on the basis of a trait that is of no benefit to the child to be born.”