News

  1. Astronomy

    Hole in the Middle: Are midsize black holes the missing link?

    Two teams of astronomers reported that they had confirmed the existence of a new class of black hole.

    By Ron Cowen
  2. Earth

    Cancer Causer? Researchers zero in on leukemia risks

    Researchers add to mounting evidence that household pesticide exposure may be a significant risk factor for childhood leukemia.

    By John Pickrell
  3. Paleontology

    Veggie Bites: Fossil suggests carnivorous dinosaurs begat vegetarian kin

    Chinese rocks have yielded fossil remains of a creature that had rodentlike incisors and a hefty overbite, providing the first distinct dental evidence for plant-eating habits among theropod dinosaurs.

    By Sid Perkins
  4. Anthropology

    Court releases ancient skeleton

    A judge's decision gives scientists the right to study the 9,000-year-old skeleton dubbed Kennewick Man rather than turn the remains over to a coalition of Native American tribes for reburial.