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  1. Chemistry

    Using laser tweezers, chemists nudged two atoms to bond

    This is the first time researchers have purposefully combined two specific atoms into a molecule.

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  2. Physics

    A key constant’s new measurement hints ‘dark photons’ don’t exist

    New measurement of the fine-structure constant is the most precise yet.

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  3. Animals

    These hummingbirds aim their singing tail feathers to wow mates

    Acoustic cameras reveal how male Costa’s hummingbirds can aim the sound produced by fluttering tail feathers during courtship dives.

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  4. Astronomy

    With the launch of TESS, NASA will boost its search for exoplanets

    The Transiting Exoplanet Survey Satellite will set the stage for the next chapter of exoplanet exploration.