Uncategorized

  1. Health & Medicine

    WHO declares a public health emergency over Congo’s Ebola outbreak

    The yearlong Ebola outbreak in the Congo has been declared a public health emergency by the World Health Organization.

    By Aimee Cunningham
  2. Ecosystems

    Planting trees could buy more time to fight climate change than thought

    Earth has nearly a billion hectares suitable for new forests to start trapping carbon, a study finds.

    By Susan Milius
  3. Genetics

    This gene may help worms live longer, but not healthier

    Antiaging therapies may have trade-offs, research on worms suggests.

    By Tina Hesman Saey
  4. Cosmology

    Scientists still can’t agree on the universe’s expansion rate

    A mismatch in measurements of how fast the universe is expanding might not be real, a study hints.