4 ms·
It doesn't appear to be dark, but transparent, AFAIU. For an object to be "dark", it has to be actually absorbing light, and I think dark matter doesn't actuall
by tremon 7y ago
It doesn't appear to be dark, but transparent, AFAIU. For an object to be "dark", it has to be actually absorbing light, and I think dark matter doesn't actually absorb it, it just doesn't interact with it (except for gravitational lensing).
Or at least, that's what I've always understood. Not a physicist though.
- mapcars 7y agoI would say "dark" here is more like "unknown" than a color reference, while both obviously have a connection in how we experience.