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  1. Planetary Science

    Long-lost ‘extinct’ meteorite found

    A newly discovered meteorite, nicknamed Öst 65, may have originated from the same collision that formed L chondrites, one of the most abundant groups of meteorites on Earth.

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  2. Chemistry

    Movie viewers’ exhaled chemicals tell if scene is funny, scary

    Changes in trace gases exhaled by movie audiences could point the way to a subtle form of human communication.

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  3. Animals

    ‘Kermit Sutra’ gets seventh amphibian mating position

    Bombay night frogs’ unusual mating protocol features indirect sperm transfer and female croaks.

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  4. Life

    Biologists seek help to ‘see’ itty-bitty molecules in 3-D

    A new citizen science project called Microscopy Masters aims to improve how scientists build three-dimensional models of proteins.