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  1. Space

    Binary stars keep masquerading as black holes

    The drive to find black holes in ever-larger astronomy datasets is leading some researchers astray.

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  2. Readers ask about a hare’s epic trek, the James Webb telescope’s solar storm preparedness and more

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  3. In Pandemic Year Three, still so many questions

    Editor in chief Nancy Shute discusses what we've learned about COVID-19, and what questions remain in the pandemic's third year.

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  4. Climate

    A global warming pause that didn’t happen hampered climate science

    Trying to explain why global warming appeared to slow down in the early 2000s distracted scientists and shook their confidence.