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LeBron James at 40: NBA’s brightest star stares down the dying of the light

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LeBron James, the NBA’s all-time leading scorer, turns 40 on Monday.Photograph: Christian Petersen/Getty Images It’s Christmas Day and a scrum of journalists surround a smiling, exhausted LeBron James in the visiting locker room at Chase Center in San Francisco, minutes after the latest installment in a decades-spanning catalog of thrilling battles with his friend and … Read more

How puffy white dwarfs could shed light on mysterious dark matter

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White dwarfs are giving up more of their secrets, with the discovery that the hotter they are, the puffier their outer layers are. While this finding may sound immaterial, understanding the structure of white dwarfs could ultimately prove key in discovering what mysterious dark matter is made from. White dwarfs are the core remains of … Read more