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  1. Tech

    50 years ago, the future of solar energy looked bright

    In the 1970s, scientists and engineers were coming around to the idea of “farming” the sun’s energy on a large scale.

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  2. Animals

    How do we know what emotions animals feel?

    Animal welfare researchers are studying the feelings and subjective experiences of horses, octopuses and more.

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  3. Particle Physics

    The W boson might be extra hefty. If so, it could hint at new physics

    A new measurement of the W boson’s mass, made by smashing particles together, reveals a potential crack in physics’ standard model.

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  4. Paleontology

    A hole in a Triceratops named Big John probably came from combat

    The nature of the wound and signs of healing suggest that the dinosaur's bony frill was impaled by a Triceratops rival.