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A comment on What If Planet 9 Is a Primordial Black Hole?. Parent comment

Re:What If Planet 9 Is a Primordial Black Hole? by mlyle on Thursday September 26, 2019 @01:28AM (#21078462)
An 5x Earth mass object doesn't need to impact Earth to create a bad time on Earth. It just has to get moderately close.
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Re:What If Planet 9 Is a Primordial Black Hole? by dreamcompiler on Thursday September 26, 2019 @01:45AM (#21078547)
Very true. And it doesn't matter if it's black or reflective, except we're sure to see it coming if it's reflective.
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