Uncategorized

  1. Health & Medicine

    Pregnancy curiosity

    Asian-Caucasian couples having children face slightly increased risks of pregnancy complications.

    By Nathan Seppa
  2. Health & Medicine

    Anthrax vaccine makeover

    Revamped anthrax vaccination regimen eases some side effects that have hampered the vaccine’s acceptance.

    By Nathan Seppa
  3. Humans

    Machu Picchu’s far-flung residents

    A new chemical analysis of skeletons at the Inca site of Machu Picchu strengthens the idea that the royal estate was maintained by retainers who had been uprooted from homes throughout the empire.

    By Bruce Bower
  4. Planetary Science

    Water’s role in Martian chemistry becoming clearer

    As mission nears end, Phoenix Mars Lander finds strong evidence for minerals similar to those formed on Earth by liquid water.