Notebook

  1. Health & Medicine

    The five basic tastes have sixth sibling: oleogustus

    Scientists dub the taste of fat oleogustus.

    By Teresa Shipley Feldhausen
  2. Genetics

    Wolves in jackals’ clothing

    Africa’s golden jackals are really a species of wolf and deserve a name change, DNA evidence indicates.

    By Tina Hesman Saey
  3. Astronomy

    Distant star has northern lights–like display

    A dim star shows signs of auroral lights, the first detected on a body that’s not a planet or moon.

    By Christopher Crockett
  4. Animals

    Toddler seahorses are bumbling and adorable

    Rice-grain-sized youngsters can’t yet get a grasp with their tails.

    By Susan Milius
  5. Planetary Science

    First craters on Mars spotted 50 years ago

    Fifty years ago, Mariner 4 revealed that the Red Planet was peppered with craters.