News

  1. Astronomy

    A Low Note in Cosmos: Sounding out a new role for black holes

    Astronomers have for the first time detected sound waves generated by a black hole.

    By Ron Cowen
  2. Health & Medicine

    Control of animal epidemic slowed human illness

    Control measures implemented in response to the devastating animal epidemic of foot-and-mouth disease can apparently help curtail the spread of the cryptosporidium parasite, which sickens people.

    By Ben Harder
  3. Health & Medicine

    Coronary calcium may predict death risk

    The amount of calcium in the coronary arteries can serve as a risk marker for people who are otherwise without heart disease symptoms.

    By Nathan Seppa
  4. Earth

    New mantle model gets the water out

    A novel notion of geophysical processes taking place deep within our planet may explain why the upper layer of Earth's mantle is relatively depleted of many trace elements.