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  1. Readers ask about Earth’s inner core, plant movement and more

    By Science News Staff
  2. Planetary Science

    Planets without stars might have moons suitable for life

    Thanks to gravitational squeezing by their host planets, some moons of rogue planets could stay warm for over a billion years, simulations suggest.

    By Bas den Hond

  3. Did artificial intelligence write this editor’s note?

    Editor in chief Nancy Shute discusses the implications of artificial intelligence tools like ChatGPT for education, journalism and more.

    By Nancy Shute
  4. Health & Medicine

    A new battery starves cancer cells of oxygen in mice

    When a self-charging battery is placed on a mouse’s tumor and combined with anticancer drugs, it reduced tumor size by 90 percent.