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  1. Astronomy

    More space sugar

    Astronomers have found a second, colder source of the simple sugar glycoaldehyde in a dust and gas cloud 26,000 light-years from Earth.

    By Ron Cowen

  2. They’re Sequencing a What?

    Announcements of new targets for genome sequencing are bringing celebrity to lesser-known twigs on the tree of life.

    By Susan Milius

  3. 19467

    I found both your articles on vitamin D very interesting. My question now is whether the rays received in a tanning bed can cause the skin to manufacture vitamin D. Wendy WadeKalamazoo, Mich. Ultraviolet–B radiation triggers the skin to produce vitamin D, whether those rays come from the sun or a lamp. However, not all […]

    By Science News
  4. Health & Medicine

    Vitamin Boost

    Vitamin D is being linked to a host of health benefits that go well beyond stronger bones, extending to muscle preservation and some protection against cancer, diabetes, and multiple sclerosis.