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  1. Readers ask about the size of the Milky Way, ancient rainforests and COVID-19

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  2. History reveals how societies survive plagues

    Editor in chief Nancy Shute writes about how societies have survived plagues, racial inequity, the coronavirus and racism as a public health crisis.

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  3. Environment

    How giving cash to poor families may also save trees in Indonesia

    Indonesia’s poverty reduction program also reduced deforestation by 30 percent, researchers say.

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  4. Archaeology

    Clues to the earliest known bow-and-arrow hunting outside Africa have been found

    Possible arrowheads at a rainforest site in Sri Lanka date to 48,000 years ago.