3 ms·

I wonder if there are also galaxies that are just dark matter. (Of course, it'd be hard to observe them. Maybe it would gravitationally affect galaxies near it.

I wonder if there are also galaxies that are just dark matter. (Of course, it'd be hard to observe them. Maybe it would gravitationally affect galaxies near it.)

netcraft 9y ago
for some definition of "galaxy" - sort of https://news.nationalgeographic.com/news/2012/03/120306-dark-matter-galaxies-mystery-space-science/ https://news.nationalgeographic.com/news/2012/03/120306-dark...
lainga 9y ago
I think Dragonfly 44 is pretty close to all-dark-matter.