Dark matter particles won’t kill you. If they could, they would have already
A lack of mysterious deaths from hypothetical ‘macros’ suggests dark matter is small and dense
![macros](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/07/072419_LG_dark-matter-death_feat.jpg?fit=1030%2C580&ssl=1)
STRIKETHROUGH Hypothetical dark matter particles called “macros” could stream through space and constantly bombard Earth. Some could seriously injure any unlucky humans they pass through, but a lack of mysterious deaths suggests the biggest potential macros don’t exist.
JPL-Caltech/NASA