Cancer

  1. Health & Medicine

    Mars trip would deliver big radiation dose

    Curiosity instrument confirms expectation of major exposures.

    By Cristy Gelling
  2. Genetics

    Genetic mutations may explain a brain cancer’s tenacity

    DNA damage may transform adult cells in glioblastoma, making the malignancy harder to kill.

    By Tina Hesman Saey
  3. Health & Medicine

    Catching a Cancer

    The official figure for the percentage of human cancers caused by viruses is around 20 percent — but most experts concede that number is largely an educated guess

    By Laura Beil
  4. Health & Medicine

    Breast density signals tamoxifen’s effectiveness

    Decreasing breast density signals the drug tamoxifen is working in women at risk of developing breast cancer.

    By Nathan Seppa
  5. Health & Medicine

    Closest look yet at lung cancer genes

    A large study offers clues to the genetics behind lung cancer.

    By Laura Sanders