New research suggests that most of the atoms within the human body likely spent part of their lives drifting beyond the Milky ...

Observing the interactions between dark matter and so-called "dark photons" during a period after the Big Bang called the "cosmic dawn" could help shed light on the universe's most mysterious and ...

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Grizzly 399 was a tour de force in the Greater Yellowstone Ecosystem, inspiring artists, motivating activists and leading wildlife managers to change policy.