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Supermassive black holes act as the engines powering the centers of galaxies, including our own Milky Way galaxy. But in a first, scientists have observed that one galaxy contains three supermassive black holes at its core and they're surprisingly close together.
The galaxy, NGC 6240, has an unusual shape, which previously led scientists to believe that it was created when two smaller galaxies collided and began to merge. NGC 6240 is relatively close to us by universal standards at 300 million light-years away, so astronomers have been able to study it in all wavelengths of light.
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California's sustainable aviation effort: Biofuel - CNN VideoAll United Airlines flights leaving Los Angeles International Airport benefit from a portion of renewable fuel, but for airlines to use biofuels at scale, governments will need to step in.
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GOP impeachment witness Kurt Volker sounded 'like a character witness for Joe Biden,' says CNN analystDuring Tuesday's broadcast of 'The Situation Room', CNN analyst Gloria Borger said that Volker's testimony—which the GOP allegedly hoped would help exonerate the president—resulted in him sounding 'like a character witness for Joe Biden' instead.
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