13.7: Cosmos And Culture 13.7: Cosmos And Culture

Astronomers have discovered a star, shown in an artist's rendition, that appears to be orbiting an invisible black hole with about four times the mass of the sun. L. Calçada/ESO hide caption

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L. Calçada/ESO

Sonequa Martin-Green, center, a cast member in "Star Trek: Discovery," poses with original "Star Trek" cast members Nichelle Nichols, left, and William Shatner at the premiere of the new television series on Sept. 19 in Los Angeles. Chris Pizzello/Invision/AP hide caption

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Chris Pizzello/Invision/AP

Step back in time: This is what 100 million years ago looked like, in a galaxy far, far away. ESO hide caption

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ESO

The Christmas Of Now: A Convergence Of Pasts

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Stormtroopers pose for photographers upon arrival at the premiere of the film 'Star Wars: The Last Jedi' in London, on Dec. 12. Vianney Le Caer/Invision/AP hide caption

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Vianney Le Caer/Invision/AP

France's President Emmanuel Macron, center, Arnold Schwarzenegger, left, and Prime Minister of Belgium Charles Michel, right, pose for a photo in front of the Eiffel Tower while aboard a boat cruising on the Seine River after the One Planet Summit, Paris, Tuesday, Dec. 12. Thibault Camus/AP hide caption

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Thibault Camus/AP