Uncategorized

  1. Space

    Star outweighed any known in Milky Way

    A nearby supernova was a big blast, challenging theories of how massive stars live and die.

    By Ron Cowen
  2. Life

    Gene stops tumors, but only when it’s gone

    When a single copy of the microRNA processor Dicer is disabled, cancer can become more deadly. Removing Dicer completely, though, stops tumors.

    By Tina Hesman Saey
  3. Life

    Poached hammerhead fins traced to endangered populations

    Mapping populations with DNA comparisons offers possible tool for conservation of hammerhead sharks.

    By Rachel Ehrenberg
  4. Chemistry

    Elusive triangular snowflakes explained

    Dust particles,wind and aerodynamics could steer some snowflakes toward a three-sided fate

    By Laura Sanders
  5. Humans

    Loneliness is contagious, study suggests

    An analysis of social networks finds that people who feel isolated may spread mistrust among others.