Comment

  1. Tech

    SESAME opens doors to international collaboration

    By Herman Winick
  2. Earth

    Obama administration should lead energy transition

    R.K. Pachauri, an engineer and economist by training, is director-general of The Energy and Resources Institute in New Delhi, India, and a corecipient of the 2007 Nobel Peace Prize for his role as chief of the Intergovernmental Panel on Climate Change. The IPCC periodically issues consensus reports on the science of climate change. Senior editor Janet Raloff spoke with him about changes he hopes to see from the Obama administration.

    By R.K. Pachauri
  3. Life

    Protect biodiversity hot spots and the rest will follow

    By E.O. Wilson
  4. Space

    Debates over definition of planet continue and inspire

    Planetary science is in the midst of a revolution.