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    CreditClockwise from top left: Robert Galbraith/Reuters; Jamie Francis, via The Oregonian, via Associated Press; Noah Berger, via Associated Press; Stephen B. Morton for The New York Times

    Trump’s Climate Views: Combative, Conflicting and Confusing

    The president has spoken often about climate change, energy, coal and wind turbines. His statements are often provocative but not always consistent. A sampling.


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    CreditM. Kornmesser/European Southern Observatory

    Our Universe’s Very Dusty Early, Early Beginnings

    Far away, in a constellation called Sculptor, astronomers have glimpsed the universe’s oldest dust. It’s 13.2 billion years old.

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    CreditJonathan Jackson and ZoË Hughes/National History Museum of London

    Figuring Out When and Why Squids Lost Their Shells

    A study suggests it became advantageous to lose a shell’s encumbering protection while gaining the speed and agility to evade predators and catch prey.