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  1. Life

    Mini brains may wrinkle and fold just like ours

    Brain organoids show how ridges and wrinkles may form.

    By Tina Hesman Saey
  2. Life

    Not all of a cell’s protein-making machines do the same job

    Ribosomes may switch up their components to specialize in building proteins.

    By Tina Hesman Saey
  3. Earth

    Watching this newborn island erode could tell us a lot about Mars

    The birth and death of a young volcanic island in the Pacific Ocean may shed light on the origins of volcanoes in Mars’ wetter past.

    By Carolyn Gramling
  4. Planetary Science

    Saturn’s rings mess with the gas giant’s atmosphere

    Data from Cassini’s shallow dives into Saturn’s ionosphere show that this charged layer in the atmosphere interacts with the planet’s rings.