• Lighting the dark

  An important new study of Alzheimer's disease hopes to use information about the ageing brain in order to improve treatment, writes Dick Ahlstrom . p
  

• Copying nature is turning chemistry green

  Scientists are imitating natural methods of making chemical reactions happen, writes Kirstin Goldring . p
  

• Go boldly for erratic boulders and twig the rock of ages

  An essay competition for students on both sides of the Border to celebrate the Year of Planet Earth has been launched by the Geological Survey, writes Dick Ahlstrom . p
  

• Why atheism requires a leap of faith

  Under the Microscope : Atheism is currently in a vigorous campaigning mood, writes Prof William Reville . p
  

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