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  1. Astronomy

    3 explanations for ‘Oumuamua that aren’t alien spaceships

    Astronomers are coming up with some creative ideas to explain the weird behavior of the first known interstellar object.

    By Lisa Grossman
  2. Chemistry

    Extreme elements push the boundaries of the periodic table

    The hunt for the next elements on the periodic table might turn up superheavy atoms that flaunt the rules of chemistry.

    By Emily Conover
  3. Genetics

    A long handshake can spread your DNA to objects you didn’t touch

    Two new studies show that even brief contact with another person or object could transfer your DNA far and wide.

    By Tina Hesman Saey
  4. Health & Medicine

    With its burning grip, shingles can do lasting damage

    Varicella zoster virus, which causes chickenpox and shingles, may instigate several other problems.