Letters to the Editor

  1. Health & Medicine

    Readers contemplate aging research

    Aging research, dino guts and Earth's quasisatellite in reader feedback.

    By Science News Staff
  2. Tech

    Readers respond to terrorism’s roots

    Readers respond to the July 9, 2016, issue of Science News with questions on terrorism, dog evolution and more.

    By Science News Staff
  3. Earth

    General relativity has readers feeling upside down

    Readers respond to the June 25, 2016, issue of Science News with questions on Earth's age, moaning whales, plate tectonics and more.

    By Science News Staff
  4. Animals

    Readers ponder animal flight

    Readers respond to the June 11, 2016, issue of Science News with questions on cormorants, butterflies, virus-sensing genes and more.