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  1. Readers ask about antibody tests, chimeras and public health and privacy

    By Science News Staff

  2. What it takes to save species, locally and globally

    Editor in chief Nancy Shute writes about the struggle to save species on both the local and global levels.

    By Nancy Shute
  3. Astronomy

    The star cluster closest to Earth is in its death throes

    Gaia spacecraft observations of stars’ motion within and fleeing the cluster suggest the 680-million-year-old Hyades has only 30 million years left.

    By Ken Croswell
  4. Archaeology

    Ancient DNA suggests Vikings may have been plagued by smallpox

    Viral genetic material from human remains provides direct evidence that smallpox infected people dating back to the year 603.