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  1. Paleontology

    This huge plant eater thrived in the age of dinosaurs — but wasn’t one of them

    A newly named plant-eater from the Late Triassic was surprisingly hefty.

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  2. Planetary Science

    An orbiter glitch may mean some signs of liquid water on Mars aren’t real

    The way that scientists process data from a Mars orbiter creates what look like signs of saltwater, but may actually be nothing, a study finds.

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  3. Neuroscience

    Brain implants let paralyzed people use tablets to send texts and stream music

    People with paralysis could control commercially available tablets with their brain activity, researchers show.

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  4. Tech

    A new airplane uses charged molecules, not propellers or turbines, to fly

    A small aircraft prototype is powered by ionic wind flowing in one direction and pushing the plane in the other.