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16 February, 15:55

In which constellation was the first black hole detected?

A. Orion

B. Cygnus

C. Cassiopeia

D. Ursa Major

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Answers (2)
  1. 16 February, 17:02
    0
    B.) By Cyngus ...
  2. 16 February, 17:19
    0
    B - Cygnus is the first
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