Recently, scientists observed the merger of giant blackholes billions of light-years away from the Earth. What is the significance of this observation?

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Q: 47 (IAS/2019)
Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?
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question_subject: 

Science

question_exam: 

IAS

stats: 

0,103,47,17,103,8,22

keywords: 

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