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  1. Astronomy

    2018 was a busy year in space

    This year, some missions started exploring the cosmos, while others were winding down.

    By Lisa Grossman
  2. Health & Medicine

    Americans are sleeping less than they were 13 years ago

    A survey suggests that nearly one-third of American adults are sleeping fewer than 6 hours a night, and minority groups are most affected.

    By Rodrigo Pérez Ortega
  3. Astronomy

    These 2018 findings could be big news — if they turn out to be true

    Discoveries about fossils, the Big Bang and more could shake up the scientific world – if they turn out to be true.

    By Cassie Martin
  4. Paleontology

    Pterosaurs may have been covered in fur and primitive feathers

    A new study provides evidence of plumelike structures in ancient flying reptiles.