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  1. Planetary Science

    With Dragonfly, NASA is heading back to Saturn’s moon Titan

    NASA’s next robotic mission to explore the solar system is headed to Saturn’s largest moon, Titan.

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  2. Health & Medicine

    In mice, a high-fat diet cuts a ‘brake’ used to control appetite

    A fatty diet changes the behavior of key appetite-regulating cells in a mouse brain.

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  3. Astronomy

    In a first, telescopes tracked a lone fast radio burst to a faraway galaxy

    First-time observations suggest that the cause of one-time fast radio bursts is different from what triggers repeatedly flashing radio bursts.

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  4. Health & Medicine

    Antioxidants may encourage the spread of lung cancer rather than prevent it

    Antioxidants protect lung cancer cells from free radicals, but also spur metastasis, two new studies suggest.