3 ms·
> Now whether there is really weakly interacting matter out there Not "out there". It's supposed to be >80% of the matter of the universe. We supposedly are ea
by astrobe_ 8y ago
> Now whether there is really weakly interacting matter out there
Not "out there". It's supposed to be >80% of the matter of the universe. We supposedly are eating some every day.
- pdonis 8y ago> It's supposed to be >80% of the matter of the universe. We supposedly are eating some every day. It's >80% of the average density of the matter in the universe. But that's an average over all of the universe. On the scale of our planet, or of the solar system, that density is negligible--as in "30 orders of magnitude smaller than the density of the stuff you eat" negligible.