News

  1. Health & Medicine

    Guggul extract fails its cholesterol test

    Guggul extract, long used in parts of Asia and gaining popularity in Western countries as a weapon against high cholesterol, does not appear to work.

    By Ben Harder
  2. Planetary Science

    A warmer, fluffier Pluto

    Although Pluto has been receding from the sun for more than a decade, planetary scientists have now found that between 1988 and 2002, Pluto’s atmosphere has nearly doubled in size and its temperature has increased by about 1 degree C.

    By Ron Cowen
  3. Health & Medicine

    Viruses, but not bacteria, tied to mental decline

    Past infection by multiple common viruses may contribute to cognitive decline in some elderly people.