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Q&A How can we extinguish a supernova?

Assuming in a galaxy far far away there is a Type 2 civilization (currently on the verge of making the transition to Type 3). Their scientists predicted that the star (red giant) they are orbiting...

7 answers  ·  posted 9y ago by user6760‭  ·  last activity 8y ago by user6760‭

Question stars civilization kardashev-scale supernova