News

  1. Plants

    Defense hormones guide plant roots’ mix of microbes

    Plants use salicylic acid to attract some bacteria to roots and repel others.

    By Tina Hesman Saey
  2. Physics

    Elusive particle shows up in ‘semimetal’

    Weyl fermions, which resemble massless electrons, have been spotted inside tantalum arsenide. Their discovery comes 86 years after they were proposed.

    By Andrew Grant
  3. Climate

    Current El Niño coming on strong

    Meteorologists expect the ongoing El Niño to strengthen in the coming months and alter weather patterns worldwide, including bringing potential drought relief to California.

    By Thomas Sumner
  4. Planetary Science

    Mission to Pluto: Live coverage

    The New Horizons spacecraft is scheduled to fly by Pluto on July 14.