News

  1. Humans

    On imagination, knowledge, art, science and … ET

    High schoolers at the Intel International Science and Engineering Fair probe the minds of distinguished scientists during a special Q and A

    By Rachel Ehrenberg
  2. Life

    For blood stem cells, the force is strong

    Blood flow boosts production of blood stem cells, two new studies show.

    By Tina Hesman Saey
  3. Space

    Cosmic dustup settles

    Two new studies document how crystalline dust forms in the hot, inner part of a young star’s planet-making disk and then gets incorporated into the cold, comet-forming region billions of kilometers away.

    By Ron Cowen
  4. Chemistry

    How RNA got started

    Scientists identify chemical reactions that could be responsible for the origin of life.