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  1. Neuroscience

    Human brains make new nerve cells — and lots of them — well into old age

    In humans, new neurons are still born in old brains, new research suggests.

    By Laurel Hamers
  2. Paleontology

    This ancient lizard may have watched the world through four eyes

    A lizard that lived 50 million years ago had both a third and a fourth eye.

    By Carolyn Gramling
  3. Materials Science

    Toxic chemicals turn a new material from porous to protective

    A new material switches from a comfortable, breathable form to a sealed-up, protective state when exposed to dangerous chemicals.

    By Maria Temming
  4. Science & Society

    How many scientists do you know in real life?

    Editor in Chief Nancy Shute ponders about memorable scientists and how we can make it easier for people to connect to their work.