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  1. Earth

    Earth’s inner core may be more complex than researchers thought

    Seismic waves suggest that Earth has a hidden heart, a distinct region within the solid part of the planet’s core.

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  2. Physics

    Static electricity helps parasitic nematodes glom onto victims

    The small electric charge generated by a moving insect is enough to affect the trajectory of a parasitic nematode’s leap so it lands right on its host.

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  3. Health & Medicine

    Maternal deaths in the U.S. keep climbing

    New U.S. data show that as maternal deaths rise, a large gap between the maternal mortality rate of Black women compared with white women persists.