Puzzle of the strange galaxy thought to be made of 99.9% dark matter is solved

phys.org

7 pointsbookofjoe4 comments

"The ratio of visible to dark matter is no longer 1 in 10,000 but one in 300 ... DF44 is not extraordinary." "... not way outside the normal value ..."

Strange, I've never seen 99.7% DM called ordinary.

I always wonder if dark matter doesn't exist and it's just hard to measure the mass of stuff very far away.

Well it's essentially just a placeholder name for what we don't know ;P

Along a similar vein, I find the concept of "Dark Energy" really hard to swallow. To me it seems like such a bizarre assumption to assume a force akin to anti-gravity instead of assuming plain old gravity.

Except that dark matter is often described as exotic and actually existing but not yet discovered. And I'm not talking about the publications that platform charlatans like Michio Kaku

Reply on news.ycombinator.com