Uncategorized

  1. Neuroscience

    The battle over new nerve cells in adult brains intensifies

    It’s not yet time to abandon the idea that adult human brains make new nerve cells.

    By Laura Sanders
  2. Animals

    Invasive asexual midges may upset Antarctica’s delicate moss banks

    Fast-multiplying insects with earthworm powers have invaded Antarctica, and scientists are worried about how their waste could affect the continent.

    By Susan Milius
  3. Life

    Mice lack stem cells in the heart needed for self-repair

    Adult mice hearts have no stem cells, a study finds. The same may be true for people, and that’s not welcome news for those who’ve had a heart attack.

    By Tina Hesman Saey
  4. Space

    The sugar that makes up DNA could be made in space

    Deoxyribose, the sugar of DNA, was created in a lab simulating ice in space.