News

  1. Health & Medicine

    Drug cuts recurrence of breast cancer

    Letrozole, which blocks estrogen production, reduces recurrence of breast cancer in women who have exhausted the usefulness of tamoxifen, the frontline cancer drug for this disease.

    By Nathan Seppa
  2. Earth

    Fill ‘er up . . . with a few tons of wheat

    A new analysis suggests that the amount of ancient plant matter that was needed to make just 1 gallon of gasoline is the same amount that can be grown each year in a 40-acre wheat field—roots, stalks, and all.

    By Sid Perkins
  3. Ecosystems

    UK halts badger kill after study of TB

    Partial results from a new study have pushed the United Kingdom to stop its controversial, decades-old policy of killing local badgers if cattle catch TB.