Uncategorized

  1. 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
  2. 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.

    By Lisa Grossman
  3. Health & Medicine

    E-cigarettes caught fire among teens

    High schoolers’ use of e-cigarettes shot up from 2017 to 2018, and public health officials are concerned that a new generation is at risk for nicotine addiction.