... [+] If there's any non-zero cross section between dark matter and normal matter, not only will an experiment like this have a chance at detecting dark matter directly, but there's a chance that dark matter will eventually interact with your human body. Is dark matter heavy, and are there only a comparatively small number of dark matter particles? We don’t know whether dark matter is all made of the same “stuff,” or whether there are multiple flavors of dark matter out there. It’s just as plausible that there are many types of dark matter, with their own rich dark sector: dark forces, dark interactions, and even dark structures. Unfortunately, these “clues” that could point to dark matter could also all point to something other than dark matter just as easily.

Source: Forbes September 08, 2020 06:00 UTC