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Giuseppe Attardi, the molecular biologist and Caltech professor best known for his research into mitochondria, died at the age of 84, according to this obituary from the New York Times. Early studies of gene expression and protein synthesis by mitochondria "became the foundation for his widely recognized studies of how genetic mutations hinder the mitochondrion’s effectiveness and may result in a cell’s decline and aging," the article says.

 

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The World Health Organization will be providing low-cost COVID-19 tests to low- and middle-income nations, according to Reuters.

Nature News examines how the confirmation of Amy Coney Barrett to the US Supreme Court could affect scientific agencies.

Nobel Prize-winner Arthur Ashkin, who developed optical tweezers, has died at 98, the Washington Post reports.

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