News

  1. Health & Medicine

    Leukemia overpowers drug in two ways

    Researchers discover why the anticancer drug Gleevec, also called STI-571, helps many patients who have chronic myelogenous leukemia but not those who have entered the crisis stage of the disease.

    By Nathan Seppa
  2. Paleontology

    Two new dinosaurs chiseled from fossil gap

    A sleek predator and a pot-bellied giant dinosaur have emerged from North American rocks to fill in a 30-million-year gap in the dinosaur fossil record.

    By Charlotte Schubert
  3. Physics

    Physics Bedrock Cracks, Sun Shines In

    The first data from a new Canadian detector of particles called neutrinos not only resolve a 30-year-old puzzle about how the sun works, but also revise estimates of mysterious "dark" matter in the universe and strengthen a key challenge to the prevailing theory of particle physics.