Feature

  1. Genetic Dark Matter

    Searching for new sources to explain human variation.

    By Tina Hesman Saey

  2. It’s enough to give you heartburn

    Wonder drugs they may be, but PPIs are overprescribed and pose some health risks.

    By Nathan Seppa

  3. The final climate frontiers

    Scientists aim to improve and localize their predictions.

    By Alexandra Witze

  4. Tiny tubes, big riddles

    Carbon cylinders’ odd traits continue to stump scientists.

    By Rachel Ehrenberg

  5. Sources of Einstein’s comments

    Leopold Infeld, Albert Einstein: His work and its influence on our world. Charles Scribner’s Sons,1950, p. 110 Max Born, The Born-Einstein Letters. Macmillan, 1971, pp. 168-69, 192.