Uncategorized

  1. Archaeology

    A carved rock found in Jordan may be the oldest known chess piece

    The 1,300-year-old game piece, which resembles a rook, or castle, was found at an Early Islamic trading outpost.

    By Bruce Bower
  2. Planetary Science

    Ribose, a sugar needed for life, has been detected in meteorites

    Samples of rocks that fell to Earth contain a key molecular ingredient of RNA, part of life’s genetic machinery.

    By Christopher Crockett
  3. Math

    How Julia Robinson helped define the limits of mathematical knowledge

    Born 100 years ago, Julia Robinson played a key role in solving Hilbert’s 10th problem.

    By Evelyn Lamb
  4. Humans

    Why screening DNA for ‘designer babies’ probably won’t work

    While simulations suggest it’s possible to predict a child’s height from looking at an embryo’s DNA, real-world examples say otherwise.