Submitted by karmagheden t3_11yjstz in space
s1ngular1ty2 t1_jd9r2h7 wrote
Reply to comment by boundegar in Research team finds indirect evidence for existence of dark matter surrounding black holes by karmagheden
It's not normal friction. It's dynamical friction. Friction from gravity. Dark matter is matter and therefore creates gravity. It interacts with any other matter via gravity.
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