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  1. Health & Medicine

    Insulin may trigger type 1 diabetes

    Insulin itself may precipitate the body's autoimmune attack in people with type 1 diabetes.

    By Christen Brownlee

  2. Vertebrates, insects share the stress

    A key protein involved in animals' physiological responses to stress has carried out the same function since before any organism developed a backbone.

    By Ben Harder
  3. Astronomy

    Spotty neutron stars

    Astronomers have for the first time discerned hot spots on the surfaces of neutron stars.

    By Ron Cowen

  4. Brain’s support cells, always on the go

    Cells that leap into action when the brain is injured are constantly searching for signs of danger during their supposed resting period.