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(5) 와인장 월넛
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mrCdgllgrfUYV |
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As the gas cloud is stretched its light gets harder to see. But by staring at the region close to the black hole for more than 20 hours of total exposure time with the VLT's Sinfoni instrument, the team was able to measure the velocities of different parts of the cloud as it streaked past the central black hole. |
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Paige |
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2019-05-23 09:02:50 |
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