News

  1. Space

    Inspecting an asteroid that hit Earth

    Researchers have analyzed fragments from 2008 TC3, the first asteroid ever tracked during its descent.

    By Ron Cowen
  2. Psychology

    Joint attention provides clues to autism and cooperation

    Psychologists and philosophers convene to discuss the roots of shared knowledge at a meeting in Waltham, Mass.

    By Bruce Bower
  3. Health & Medicine

    Nobel in medicine honors discoveries of telomeres and telomerase

    Three scientists share the Nobel Prize in Physiology or Medicine for the discovery of telomeres, which protect the ends of chromosomes, and the enzyme telomerase, which adds the structures to the ends of chromosomes.

    By Tina Hesman Saey
  4. Space

    Universe has more entropy than thought

    New calculations suggest that the cosmos is more disorderly than thought and is a bit closer to heat death.