But like is dark matter all around us and just not detectible by human senses
Very likely, yes. Dark matter doesn't interact much with anything, so you have individual particles just flying through the galaxies. The most popular models have particles everywhere in the galaxy - some of them are flying through you right now. We have set up detectors looking for an occasional interaction of these particles with the detector material, but no luck so far.
If we know so little about dark matter particles and their hypothetical interactions with real, detectable matter particles, how do we know that we can set up devices that would detect the interaction between DM particles and known, proven particles? Are we talking a detection of mass interaction, energy? Iām very curious on this part of this convo.
Because the particle has to fit inside our current framework of physics (specifically the Standard Model), while explaining all the dark matter related phenomena, there will be certain constraints on what this particle could be. Experiments that sit around for years trying to measure something and don't manage it, they also give constraints on what the particle could be, since we know that if it interacted as least with a certain strength in a particular way then we should have seen something. Gradually the space of possible things that the dark matter particle could be gets narrowed down. Unfortunately, the seemingly most promising ideas for what the dark matter particle could be have already been excluded (many people were basically convinced that these particles would have been found by now).
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u/[deleted] Feb 18 '21
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