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Search reveals eight new sources of black hole echoes

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Wata Chanita Tubthong & Weizhe Liu

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Persistent “hiccups” in a far-off galaxy draw astronomers to new black hole behavior

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John Wu

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Study: Without more data, a black hole’s origins can be “spun” in any direction

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Newly discovered Earth-sized planet may lack an atmosphere

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MKI IT Group

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George Clark, professor emeritus and X-ray astronomy leader, dies at 94

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Michael Reefe

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