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  1. Astronomy

    50 years ago, pulsars burst onto the scene

    Thousands of pulsars have been discovered since the announcement of their detection 50 years ago.

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  2. Physics

    Some meteorites contain superconducting bits

    Scientists find materials that conduct electricity without resistance in two meteorites.

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  3. Planetary Science

    4 surprising things we just learned about Jupiter

    Polar cyclones, surprisingly deep atmosphere and a fluid mass spinning as a rigid body are among the latest discoveries at Jupiter.

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  4. Animals

    This baby bird fossil gives a rare look at ancient avian development

    A 127-million-year-old fossil of a baby bird suggests diversity in how a group of extinct birds grew.