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  1. Physics

    STEVE the aurora makes its debut in mauve

    A newly discovered type of aurora is a visible version of usually invisible charged particles drifting in the upper atmosphere.

    By Emily Conover
  2. Plants

    Liverwort reproductive organ inspires pipette design

    A new pipette is inspired by a plant’s female reproductive structure.

    By Laurel Hamers
  3. Planetary Science

    Dwarf planet Ceres may store underground brine that still gushes up today

    Waterlogged minerals and changing ice add to evidence that Ceres is geologically active.

    By Lisa Grossman
  4. Astronomy

    New Horizons’ next target has been dubbed Ultima Thule

    NASA has named New Horizons spacecraft’s next target Ultima Thule after the public suggested tens of thousands of monikers for the Kuiper Belt object.