Uncategorized

  1. Planetary Science

    Shifting Ocean: Tipsy Mars may explain undulating shoreline

    Evidence that Mars once had a vast ocean gains support from a proposal that the planet was tipped halfway over on its side several billion years ago.

    By Ron Cowen
  2. Health & Medicine

    Vaccine Harvest: Cholera fighter could be easy to swallow

    An edible vaccine, made by genetically engineering rice, safeguards mice against the toxin produced by cholera bacteria.

    By Nathan Seppa
  3. Tech

    Improbability Drive: Focus on rare actions speeds chemical simulations

    A new algorithm speeds simulations of chemical reactions by focusing on rare but crucial molecular motions.

    By Davide Castelvecchi
  4. Plants

    Easy There, Bro: A plant can spot and favor close kin

    A little beach plant can recognize its siblings as long as their roots grow in nearby soil.