Uncategorized

  1. Space

    Martian soil hints at water, nutrients

    The first chemical analysis of dirt by the Mars Phoenix Lander supports the notion that liquid water flowed on the Red Planet at some point.

    By Ron Cowen
  2. Life

    Viruses rewritten

    Scientists could create wimpy versions of real viruses to develop vaccines for emerging diseases.

    By Patrick Barry
  3. Life

    Losing sleep

    A genetic source of mental retardation and autism may also disrupt sleep patterns.

    By Tina Hesman Saey
  4. Health & Medicine

    Vessel rescue

    A blood pressure medication limits damage to the aorta in people with Marfan syndrome, possibly signaling a new therapy for the condition.