News

  1. Physics

    Model may expose how friction lets loose

    Rather than just grinding past each other, sliding surfaces may tremble with minuscule ripples that overcome friction as they move along.

    By Peter Weiss
  2. Health & Medicine

    Even a little coffee may up heart risk

    Drinking just 1 to 3 cups of coffee daily may adversely affect blood concentrations of cholesterol and homocysteine.

    By Janet Raloff
  3. Paleontology

    New Fossils Resolve Whale’s Origin

    The first discovery of early whale fossils with key ankle bones intact provides compelling paleontological evidence that whales are closely related to many living ungulates, a relationship already supported by molecular data.

    By Ben Harder
  4. Health & Medicine

    Constipation might signal Parkinson’s

    Men who are constipated are more likely to develop Parkinson's disease than men who are not.