/u/dgb75's posts in /r/askscience
Is there a distance at which the interaction between the gravity fields of two black holes would cause one another to effectively 'break open' and allow matter and energy stored within them to escape the system?
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Why do volcanologists grab molten lava from lava flows? Given they take these to a lab for analysis anyway, how are these samples not the same as the already hardened rock?
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