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Dark matter does interaction with matter via gravity. It just doesn't interact via electromagnetism, the weak nuclear force, or the strong nuclear force. Our
by ww520 9y ago
Dark matter does interaction with matter via gravity. It just doesn't interact via electromagnetism, the weak nuclear force, or the strong nuclear force. Our usual observation techniques with electromagnetism can't detect it.
- 37 9y agoYes. In fact, this is how we detect DM, by measuring the speeds of the galaxies, rotating around the galactic core. Our calculations point to a slower speed than observed, thus implying some mass of "matter" which we cannot see.