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  1. Physics

    Scientists’ collection of gravitational waves just got a lot bigger

    The biggest black hole merger yet seen created one set of the spacetime ripples.

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  2. Animals

    Rebel honeybee workers lay eggs when their queen is away

    A honeybee queen’s absence in the colony triggers some workers to turn queen-like and lay eggs, sometimes in other colonies.

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  3. Life

    How some sap-sucking insects fling their pee

    Sharpshooters hurl their pee with structure called a stylus, which sends droplets flying at 20 times the acceleration of Earth’s gravity.

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  4. Planetary Science

    NASA’s OSIRIS-REx spacecraft has finally arrived at asteroid Bennu

    Planetary scientists hope the probe will reveal if such carbon-rich asteroids helped kick-start life on Earth.