Black voters launched Joe Biden to victory across the South, Latinos were decisive in Sanders' California win and Asian-American voters could prove key in the general election.
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The Massachusetts senator now occupies an awkward middle ground in the presidential race. She has a large and enthusiastic base but hasn't been able to present a real challenge to the front-runners.
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As the world watches the outbreak of a novel coronovirus, epidemiologists are watching simulations of that outbreak in their computers, to try to predict what might happen next.
(Image credit: Hannah A Bullock and Azaibi Tamin/CDC/Science Source)
Around the world, comedians, TikTokers and public health ministries are bringing fresh style and humor to a classic form: the hygiene tutorial.
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Alan Gross, an American who was detained in a Cuban prison for several years, tells NPR that Sen. Bernie Sanders visited him in detention and remarked he didn't understand why others criticized Cuba.
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Among Native Americans, asthma rates are high, and those with asthma end up in clinics more often, miss more school and work, and are more likely to die from the condition, according to the CDC.
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In a redo of an issue decided just four years ago, a newly constituted Supreme Court once again weighs abortion regulations.
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The former vice president won handily in states around the country — Virginia, Massachusetts, Alabama and Texas. But Vermont Sen. Bernie Sanders won delegate-rich California, plus Colorado and Utah.
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Vice President Mike Pence has summoned the CEOs of major airlines to the White House on Wednesday to talk about data used to track down the fellow passengers of people later found to have coronavirus.
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It was a surprise result for the former vice president, who won a majority of states on Super Tuesday. He rode a wave of momentum that may have catapulted him back into front-runner status.
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Doctors used CRISPR to edit genes of cells inside a patient's eye, hoping to restore vision to a person blinded by a rare genetic disorder. A similar strategy might work for some brain diseases.
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Former New York Mayor Michael Bloomberg spent more than $500 million to wage a national campaign, starting with the 14 states that held primaries on Tuesday. He lost all of them.
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The annual survey of the state of global freedom includes the world's two biggest democracies — India and the U.S. — among nations where freedom is declining.
(Image credit: Ng Han Guan/AP)