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  1. Space

    A weird cosmic flare called the ‘Cow’ now has company

    Scientists have now found three similar luminous, short-lived bursts of light, part of a class known as fast blue optical transients.

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  2. We have learned much, and need to learn much more

    Editor in chief Nancy Shute writes about the challenges of covering emerging scientific discoveries in the time of COVID-19.

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  3. Readers ask about dust in space, playgrounds, and COVID-19

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  4. Special Report: Fighting the Virus

    This special report investigates what it will take to regain some sense of normalcy: Safe and effective treatments and a vaccine, along with testing and contact-tracing systems.